Toward Accurate Estimation of Extractable Organic Fluorine by Analysis of Fluoride Contamination in Extracts Using Gas Chromatography

Propionic Acid Outperforms Formic and Acetic Acid in MS Sensitivity for High-Flow Reversed-Phase LC-MS Bottom-Up Proteomics

In the week of August 31, the following webinars await you in the field of liquid phase and especially HPLC and LC/MS.<blockquote><h4><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/webinars">👉 DETAILS AND REGISTRATION IN THE WEBINARS SECTION</a></h4>👉 Search and filter in the largest global database with over 5 500 GC, LC, MS and spectroscopy webinars.</blockquote><h5>1. Technology Networks: Modern Methods for Faster Microbial Analysis</h5><ul><li>Tu, 1.9.2026 11:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/webinar/6454">Registration</a></li></ul>Struggling to choose the right technique for microbial testing? Learn how MALDI-TOF, FTIR, and automated DNA/RNA electrophoresis accelerate identification.<h5>2. Phenomenex: Addressing LC Method Optimization - Scaling For Efficiency, Throughput And Reproducibility</h5><ul><li>We, 2.9.2026 10:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/webinar/6458">Registration</a></li></ul>Join this webinar on LC method optimization and scaling. Learn how column dimensions, particle morphology, and sample loading strategies maximize throughput and reproducibility.<h5>3. Thermo Fisher Scientific: Proteoform Studio software, top down made simple</h5><ul><li>We, 2.9.2026 14:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/webinar/6459">Registration</a></li></ul>Learn how Thermo Scientific Proteoform Studio software simplifies top-down MS and intact protein analysis through integrated workflows, interactive deconvolution, and reporting.<h5>4. Agilent Technologies: Targeted Hybridization Capture for Antimicrobial Resistance Surveillance in Complex Environmental Samples</h5><ul><li>We, 2.9.2026 15:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/webinar/6455">Registration</a></li></ul>Discover how Agilent SureSelect hybrid capture enhances antimicrobial resistance gene detection and characterization in complex environmental samples compared with shotgun NGS.<h5>5. Thermo Fisher Scientific: Ask the Expert: What to expect from the new Thermo Scientific™ Orbitrap™ Excedion™ Hybrid mass spectrometers</h5><ul><li>Th, 3.9.2026 11:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/webinar/6466">Registration</a></li></ul>Discover the new Orbitrap Excedion Hybrid Mass Spectrometer and learn how enhanced dynamic range, robust performance, and an upgradeable design support advanced HRAM workflows.<h5>6. Waters Corporation: Informatics series #34 Ready for Self-Documenting Chromatography?</h5><ul><li>Th, 3.9.2026 11:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/webinar/6426">Registration</a></li></ul>Speed up root cause analysis with self-documenting LC and Empower software in this 30-minute Waters coffee break.<h5>7. SciY/Mestrelab Research: From Legacy Workflows to Paperless Labs: Track Every Sample, Process, and Decision</h5><ul><li>Th, 3.9.2026 17:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/webinar/6425">Registration</a></li></ul>Transform your lab from paper to digital. Learn how WebLab and LIMS workflows automate sample tracking and support laboratory compliance.<h5>8. SelectScience: ADC characterization in one native LC-MS workflow</h5><ul><li>Fr, 4.9.2026 17:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://labrulez.com/en-us/all/webinar/6460">Registration</a></li></ul>Simplify ADC characterization with native RP-LC-MS using Biozen® columns to determine DAR, proteoforms, and positional isomers without buffer exchange.

Webinars LabRulezLCMS Week 36/2026

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TB4/TB-500/TB4(17-23) analysis

Targeted HPLC analysis of TB4, TB-500, and TB4(17-23), distinguishing full-length TB4 from fragments and determining amount and peptide purity.

The TB4/TB-500/TB4(17-23) Analysis is a targeted laboratory test designed to identify and quantify TB4, TB-500, and the TB4(17-23) fragment and to assess peptide purity in lyophilised vials and raw active pharmaceutical ingredient (API) powders.The analysis determines whether the sample contains the complete 43-amino-acid TB4 peptide or only a fragment. It can also specifically identify the TB4(17-23) fragment. Results for lyophilised samples are reported in milligrams per vial together with peptide purity.<h4>About TB4, TB-500 and TB4(17-23)</h4>Thymosin beta-4 (TB4) is a naturally occurring 43-amino-acid peptide involved in actin regulation, cell migration, and processes associated with tissue repair. TB-500 refers to synthetic forms related to TB4, while TB4(17-23) is a short fragment with the sequence LKKTETQ, studied mainly in relation to cell migration, angiogenesis, and wound healing.<h4>Key Features</h4><ul><li>Targeted identification and quantification of TB4, TB-500, and TB4(17-23)</li><li>Distinguishes the complete 43-amino-acid TB4 peptide from shorter fragments</li><li>Specific identification of the TB4(17-23) fragment</li><li>Determination of peptide purity</li><li>Suitable for lyophilised vials and raw API powders</li><li>Analysis by HPLC</li><li>Results for lyophilised samples reported in mg per vial and peptide purity</li><li>Alternative result format for raw API powders includes purity in % (m/m) and peptide purity</li><li>Minimum sample amount of one whole unopened vial with lyophilisate</li><li>Minimum sample amount of 30 mg for raw API powders</li><li>Average turnaround time of 7 business days</li></ul><h4>Analysis Parameters</h4><ul><li>Target compounds: TB4, TB-500, TB4(17-23)</li><li>Other names: Thymosin Beta-4, Thymosin Beta 4 Fragment, TB4 Fragment 17-23</li><li>Testing method: HPLC</li><li>CAS number – TB-500 (TB4): 77591-33-4</li><li>Molecular weight – TB-500 (TB4): 4963 Da</li><li>Sequence – TB-500 (TB4): Ac-Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe-Asp-Lys-Ser-Lys-Leu-Lys-Lys-Thr-Glu-Thr-Gln-Glu-Lys-Asn-Pro-Leu-Pro-Ser-Lys-Glu-Thr-Ile-Gln-Glu-Gly-Lys-Glu-Asn-Glu-Ser-OH</li><li>CAS number – TB500 (889 Da): 476014-70-7</li><li>Molecular weight – TB500 (889 Da): 889 Da</li><li>Sequence – TB500 (889 Da): N-Acetyl-Leu-Lys-Lys-Thr-Glu-Thr-Gln</li><li>Minimum amount of target compound for evaluation: Less than 1/20 of the usual dosage per vial</li><li>Result format for lyophilised samples: mg per vial and peptide purity</li><li>Result format for raw API powders: Purity in % (m/m) and peptide purity</li><li>Minimum sample amount for lyophilised samples: One whole unopened vial with lyophilisate</li><li>Minimum sample amount for raw API powders: 30 mg in a sealed glass vial to prevent the sample from absorbing moisture</li><li>Average turnaround time: 7 business days</li></ul><blockquote>Important Notice<ul><li>The analysis determines whether the complete 43-amino-acid TB4 peptide or only a fragment is present and then determines its amount and peptide purity.</li><li>Results are distinguished in the laboratory report as follows:<ul><li>TB-500 (TB-4): the entire peptide was identified.</li><li>TB-500: only a fragment was identified; the report comment specifies which fragment was detected.</li><li>TB-500 889 (Da): the 17-23 fragment was identified.</li></ul></li><li>This analysis does not automatically screen the sample for other peptides, degradation products, contaminants, or undeclared substances.</li><li>For lyophilised samples, one whole unopened vial containing lyophilisate is required.</li><li>Raw API powder should be supplied as at least 30 mg in a sealed glass vial to protect the sample from moisture.</li></ul></blockquote><h4>Optional Additional Analyses</h4>The following optional laboratory services are available:<ul><li>TFA Analysis</li><li>Complete Raw Analytical Data</li><li>Fentanyl Screening</li><li>Alternative Result Format: Purity in % (m/m)</li><li>Batch Variance Testing</li><li>pH Measurement</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2522">Endotoxin Analysis</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2526">CHNS Mass Report</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2524">LCMS Screening for Peptide Contamination</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2527">Sterility Testing (TAMC + TYMC)</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2525">Heavy Metals Analysis (As, Cd, Pb, Hg)</a></li><li>Additional Laboratory Report</li></ul>

Tesamorelin analysis

Targeted HPLC analysis of tesamorelin in lyophilised vials and raw API powders, including identity, amount, and peptide purity.

The Tesamorelin Analysis is a targeted laboratory test designed to confirm the identity, determine the amount, and assess the peptide purity of tesamorelin in lyophilised vials and raw active pharmaceutical ingredient (API) powders.For lyophilised samples, results are reported in milligrams per vial together with peptide purity. Raw API powders can be evaluated using purity in % (m/m) together with peptide purity.<h4>About Tesamorelin</h4>Tesamorelin is a synthetic analogue of growth hormone-releasing hormone (GHRH). It stimulates GHRH receptors in the pituitary gland, increasing the release of growth hormone and subsequently IGF-1 levels.In the United States, tesamorelin is approved for reducing excess abdominal fat in adults with HIV-associated lipodystrophy.<h4>Key Features</h4><ul><li>Targeted identification and quantification of tesamorelin</li><li>Determination of peptide purity</li><li>Suitable for lyophilised vials and raw API powders</li><li>Analysis by HPLC</li><li>Results for lyophilised samples reported in mg per vial and peptide purity</li><li>Alternative result format for raw API powders includes purity in % (m/m) and peptide purity</li><li>Minimum sample amount of one whole unopened vial with lyophilisate</li><li>Minimum sample amount of 30 mg for raw API powders</li><li>Average turnaround time of 7 business days</li></ul><h4>Analysis Parameters</h4><ul><li>Target compound: Tesamorelin</li><li>CAS number: 218949-48-5</li><li>Molecular weight: 3327</li><li>Sequence: H-His-Ser-Asp-Ala-Val-Phe-Thr-Asp-Asn-Tyr-Thr-Arg-Leu-Arg-Lys-Gln-Met-Ala-Val-Lys-Lys-Tyr-Leu-Asn-Ser-Ile-Leu-Asn-OH</li><li>Testing method: HPLC</li><li>Minimum amount of target compound for evaluation: Less than 1/20 of the usual dosage per vial</li><li>Result format for lyophilised samples: mg per vial and peptide purity</li><li>Result format for raw API powders: Purity in % (m/m) and peptide purity</li><li>Minimum sample amount for lyophilised samples: One whole unopened vial with lyophilisate</li><li>Minimum sample amount for raw API powders: 30 mg in a sealed glass vial to prevent the sample from absorbing moisture</li><li>Average turnaround time: 7 business days</li></ul><blockquote>Important Notice<ul><li>This analysis is specifically intended for tesamorelin. It does not automatically screen the sample for other GHRH-related peptides, degradation products, contaminants, or undeclared substances.</li><li>For lyophilised samples, one whole unopened vial containing lyophilisate is required.</li><li>Raw API powder should be supplied as at least 30 mg in a sealed glass vial to protect the sample from moisture.</li><li>The alternative result format for raw API powders includes both purity in % (m/m) and peptide purity.</li></ul></blockquote><h4>Optional Additional Analyses</h4>The following optional laboratory services are available:<ul><li>TFA Analysis</li><li>Complete Raw Analytical Data</li><li>Fentanyl Screening</li><li>Alternative Result Format: Purity in % (m/m)</li><li>Batch Variance Testing</li><li>pH Measurement</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2522">Endotoxin Analysis</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2526">CHNS Mass Report</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2524">LCMS Screening for Peptide Contamination</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2527">Sterility Testing (TAMC + TYMC)</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2525">Heavy Metals Analysis (As, Cd, Pb, Hg)</a></li><li>Additional Laboratory Report</li></ul>

Testagen analysis

Targeted HPLC analysis of Testagen in lyophilised vials and raw API powders, including identity, amount, and peptide purity determination.

The Testagen Analysis is a targeted laboratory test designed to confirm the identity, determine the amount, and assess the peptide purity of Testagen in lyophilised vials and raw active pharmaceutical ingredient (API) powders.For lyophilised samples, results are reported in milligrams per vial together with peptide purity. Raw API powders can be evaluated using purity in % (m/m) together with peptide purity.<h4>About Testagen</h4>Testagen is a synthetic tetrapeptide with the amino acid sequence Lys-Glu-Asp-Gly (KEDG). It belongs to a group of short peptide bioregulators studied primarily in experimental research.Research on KEDG has examined its interactions with cells and nucleic acids, as well as its effects in experimental models involving endocrine and thymic tissues.<h4>Key Features</h4><ul><li>Targeted identification and quantification of Testagen</li><li>Determination of peptide purity</li><li>Suitable for lyophilised vials and raw API powders</li><li>Analysis by HPLC</li><li>Results for lyophilised samples reported in mg per vial and peptide purity</li><li>Alternative result format for raw API powders includes purity in % (m/m) and peptide purity</li><li>Minimum sample amount of one whole unopened vial with lyophilisate</li><li>Minimum sample amount of 30 mg for raw API powders</li><li>Average turnaround time of 7 business days</li></ul><h4>Analysis Parameters</h4><ul><li>Target compound: Testagen</li><li>Sequence: Lys-Glu-Asp-Gly-OH</li><li>Testing method: HPLC</li><li>Minimum amount of target compound for evaluation: Less than 1/20 of the usual dosage per vial</li><li>Result format for lyophilised samples: mg per vial and peptide purity</li><li>Result format for raw API powders: Purity in % (m/m) and peptide purity</li><li>Minimum sample amount for lyophilised samples: One whole unopened vial with lyophilisate</li><li>Minimum sample amount for raw API powders: 30 mg in a sealed glass vial to prevent the sample from absorbing moisture</li><li>Average turnaround time: 7 business days</li></ul><blockquote>Important Notice<ul><li>This analysis is specifically intended for Testagen. It does not automatically screen the sample for other peptides, related compounds, degradation products, contaminants, or undeclared substances.</li><li>For lyophilised samples, one whole unopened vial containing lyophilisate is required.</li><li>Raw API powder should be supplied as at least 30 mg in a sealed glass vial to protect the sample from moisture.</li><li>The alternative result format for raw API powders includes both purity in % (m/m) and peptide purity.</li></ul></blockquote><h4>Optional Additional Analyses</h4>The following optional laboratory services are available:<ul><li>TFA Analysis</li><li>Complete Raw Analytical Data</li><li>Fentanyl Screening</li><li>Alternative Result Format: Purity in % (m/m)</li><li>Batch Variance Testing</li><li>pH Measurement</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2522">Endotoxin Analysis</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2526">CHNS Mass Report</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2524">LCMS Screening for Peptide Contamination</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2527">Sterility Testing (TAMC + TYMC)</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2525">Heavy Metals Analysis (As, Cd, Pb, Hg)</a></li><li>Additional Laboratory Report</li></ul>

Thymagen (Thymogen) analysis

Targeted HPLC analysis of Thymagen (Thymogen) in lyophilised vials and raw API powders, including identity, amount, and peptide purity.

The Thymagen (Thymogen) Analysis is a targeted laboratory test designed to confirm the identity, determine the amount, and assess the peptide purity of Thymagen in lyophilised vials and raw active pharmaceutical ingredient (API) powders.For lyophilised samples, results are reported in milligrams per vial together with peptide purity. Raw API powders can be evaluated using purity in % (m/m) together with peptide purity.<h4>About Thymagen (Thymogen)</h4>Thymagen, also known as Thymogen, is a synthetic dipeptide composed of glutamic acid and tryptophan (Glu-Trp). It has been studied primarily for its immunomodulatory properties and its effects on immune cell function.Research has focused particularly on its influence on T-cell differentiation and other processes involved in cellular and humoral immune responses.<h4>Key Features</h4><ul><li>Targeted identification and quantification of Thymagen</li><li>Determination of peptide purity</li><li>Suitable for lyophilised vials and raw API powders</li><li>Analysis by HPLC</li><li>Results for lyophilised samples reported in mg per vial and peptide purity</li><li>Alternative result format for raw API powders includes purity in % (m/m) and peptide purity</li><li>Minimum sample amount of one whole unopened vial with lyophilisate</li><li>Minimum sample amount of 30 mg for raw API powders</li><li>Average turnaround time of 7 business days</li></ul><h4>Analysis Parameters</h4><ul><li>Target compound: Thymagen</li><li>Other name: Thymogen</li><li>CAS number: 38101-59-6</li><li>Molecular weight: 333.34</li><li>Sequence: NH2-Glu-Trp-OH</li><li>Testing method: HPLC</li><li>Minimum amount of target compound for evaluation: Less than 1/20 of the usual dosage per vial</li><li>Result format for lyophilised samples: mg per vial and peptide purity</li><li>Result format for raw API powders: Purity in % (m/m) and peptide purity</li><li>Minimum sample amount for lyophilised samples: One whole unopened vial with lyophilisate</li><li>Minimum sample amount for raw API powders: 30 mg in a sealed glass vial to prevent the sample from absorbing moisture</li><li>Average turnaround time: 7 business days</li></ul><blockquote>Important Notice<ul><li>This analysis is specifically intended for Thymagen (Thymogen). It does not automatically screen the sample for other peptides, related compounds, degradation products, contaminants, or undeclared substances.</li><li>For lyophilised samples, one whole unopened vial containing lyophilisate is required.</li><li>Raw API powder should be supplied as at least 30 mg in a sealed glass vial to protect the sample from moisture.</li><li>The alternative result format for raw API powders includes both purity in % (m/m) and peptide purity.</li></ul></blockquote><h4>Optional Additional Analyses</h4>The following optional laboratory services are available:<ul><li>TFA Analysis</li><li>Complete Raw Analytical Data</li><li>Fentanyl Screening</li><li>Alternative Result Format: Purity in % (m/m)</li><li>Batch Variance Testing</li><li>pH Measurement</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2522">Endotoxin Analysis</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2526">CHNS Mass Report</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2524">LCMS Screening for Peptide Contamination</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2527">Sterility Testing (TAMC + TYMC)</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2525">Heavy Metals Analysis (As, Cd, Pb, Hg)</a></li><li>Additional Laboratory Report</li></ul>

Thymalin/Thymulin analysis

Targeted HPLC analysis of Thymalin/Thymulin in lyophilised vials and raw API powders, including identity, amount, and peptide purity.

The Thymalin/Thymulin Analysis is a targeted laboratory test designed to confirm the identity, determine the amount, and assess the peptide purity of Thymalin/Thymulin in lyophilised vials and raw active pharmaceutical ingredient (API) powders.For lyophilised samples, results are reported in milligrams per vial together with peptide purity. Raw API powders can be evaluated using purity in % (m/m) together with peptide purity.<h4>About Thymalin/Thymulin</h4>Thymalin and Thymulin are substances associated with thymic function and have been studied primarily in relation to immune regulation. Thymulin is a naturally occurring peptide involved particularly in T-cell development and function, while Thymalin is a polypeptide complex isolated from the thymus and investigated for its immunomodulatory effects.<h4>Key Features</h4><ul><li>Targeted identification and quantification of Thymalin/Thymulin</li><li>Determination of peptide purity</li><li>Suitable for lyophilised vials and raw API powders</li><li>Analysis by HPLC</li><li>Results for lyophilised samples reported in mg per vial and peptide purity</li><li>Alternative result format for raw API powders includes purity in % (m/m) and peptide purity</li><li>Minimum sample amount of one whole unopened vial with lyophilisate</li><li>Minimum sample amount of 30 mg for raw API powders</li><li>Average turnaround time of 7 business days</li></ul><h4>Analysis Parameters</h4><ul><li>Target compound: Thymalin/Thymulin</li><li>CAS number: 78922-62-0</li><li>Molecular weight: 859</li><li>Sequence: H-Pyr-Ala-Lys-Ser-Gln-Gly-Gly-Ser-Asn-OH</li><li>Testing method: HPLC</li><li>Minimum amount of target compound for evaluation: Less than 1/20 of the usual dosage per vial</li><li>Result format for lyophilised samples: mg per vial and peptide purity</li><li>Result format for raw API powders: Purity in % (m/m) and peptide purity</li><li>Minimum sample amount for lyophilised samples: One whole unopened vial with lyophilisate</li><li>Minimum sample amount for raw API powders: 30 mg in a sealed glass vial to prevent the sample from absorbing moisture</li><li>Average turnaround time: 7 business days</li></ul><blockquote>Important Notice<ul><li>This analysis is specifically intended for Thymalin/Thymulin according to the parameters specified above. It does not automatically screen the sample for other thymic peptides, related compounds, degradation products, contaminants, or undeclared substances.</li><li>For lyophilised samples, one whole unopened vial containing lyophilisate is required.</li><li>Raw API powder should be supplied as at least 30 mg in a sealed glass vial to protect the sample from moisture.</li><li>The alternative result format for raw API powders includes both purity in % (m/m) and peptide purity.</li></ul></blockquote><h4>Optional Additional Analyses</h4>The following optional laboratory services are available:<ul><li>TFA Analysis</li><li>Complete Raw Analytical Data</li><li>Fentanyl Screening</li><li>Alternative Result Format: Purity in % (m/m)</li><li>Batch Variance Testing</li><li>pH Measurement</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2522">Endotoxin Analysis</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2526">CHNS Mass Report</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2524">LCMS Screening for Peptide Contamination</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2527">Sterility Testing (TAMC + TYMC)</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2525">Heavy Metals Analysis (As, Cd, Pb, Hg)</a></li><li>Additional Laboratory Report</li></ul>

Thymosin Alpha-1 analysis

Targeted HPLC analysis of Thymosin Alpha-1 in lyophilised vials and raw API powders, including identity, amount, and peptide purity.

The Thymosin Alpha-1 Analysis is a targeted laboratory test designed to confirm the identity, determine the amount, and assess the peptide purity of Thymosin Alpha-1 in lyophilised vials and raw active pharmaceutical ingredient (API) powders.For lyophilised samples, results are reported in milligrams per vial together with peptide purity. Raw API powders can be evaluated using purity in % (m/m) together with peptide purity.<h4>About Thymosin Alpha-1</h4>Thymosin Alpha-1 (Tα1) is a 28-amino-acid peptide involved in the regulation of immune responses. It has been studied for its immunomodulatory effects, including its influence on T cells, dendritic cells, and innate and adaptive immunity.<h4>Key Features</h4><ul><li>Targeted identification and quantification of Thymosin Alpha-1</li><li>Determination of peptide purity</li><li>Suitable for lyophilised vials and raw API powders</li><li>Analysis by HPLC</li><li>Results for lyophilised samples reported in mg per vial and peptide purity</li><li>Alternative result format for raw API powders includes purity in % (m/m) and peptide purity</li><li>Minimum sample amount of one whole unopened vial with lyophilisate</li><li>Minimum sample amount of 30 mg for raw API powders</li><li>Average turnaround time of 7 business days</li></ul><h4>Analysis Parameters</h4><ul><li>Target compound: Thymosin Alpha-1</li><li>Other name: TA-1</li><li>CAS number: 69521-94-4</li><li>Molecular weight: 3108</li><li>Sequence: Ac-Ser-Asp-Ala-Ala-Val-Asp-Thr-Ser-Ser-Glu-Ile-Thr-Thr-Lys-Asp-Leu-Lys-Glu-Lys-Lys-Glu-Val-Val-Glu-Glu-Ala-Glu-Asn-OH</li><li>Testing method: HPLC</li><li>Minimum amount of target compound for evaluation: Less than 1/20 of the usual dosage per vial</li><li>Result format for lyophilised samples: mg per vial and peptide purity</li><li>Result format for raw API powders: Purity in % (m/m) and peptide purity</li><li>Minimum sample amount for lyophilised samples: One whole unopened vial with lyophilisate</li><li>Minimum sample amount for raw API powders: 30 mg in a sealed glass vial to prevent the sample from absorbing moisture</li><li>Average turnaround time: 7 business days</li></ul><blockquote>Important Notice<ul><li>This analysis is specifically intended for Thymosin Alpha-1. It does not automatically screen the sample for other thymosin peptides, related compounds, degradation products, contaminants, or undeclared substances.</li><li>For lyophilised samples, one whole unopened vial containing lyophilisate is required.</li><li>Raw API powder should be supplied as at least 30 mg in a sealed glass vial to protect the sample from moisture.</li><li>The alternative result format for raw API powders includes both purity in % (m/m) and peptide purity.</li></ul></blockquote><h4>Optional Additional Analyses</h4>The following optional laboratory services are available:<ul><li>TFA Analysis</li><li>Complete Raw Analytical Data</li><li>Fentanyl Screening</li><li>Alternative Result Format: Purity in % (m/m)</li><li>Batch Variance Testing</li><li>pH Measurement</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2522">Endotoxin Analysis</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2526">CHNS Mass Report</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2524">LCMS Screening for Peptide Contamination</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2527">Sterility Testing (TAMC + TYMC)</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2525">Heavy Metals Analysis (As, Cd, Pb, Hg)</a></li><li>Additional Laboratory Report</li></ul>

Thymosin Alpha-1/ Thymalin (Thymulin) blend analysis

Targeted analysis of a Thymosin Alpha-1 and Thymalin/Thymulin blend for identification and amount determination of individual components.

The Thymosin Alpha-1 / Thymalin (Thymulin) Blend Analysis is a targeted laboratory test designed to confirm the identity and determine the amount of Thymosin Alpha-1 and Thymalin/Thymulin in a lyophilised peptide blend.Results are reported in milligrams per vial. Peptide purity cannot be determined in peptide blends because impurities from the individual components may overlap during analysis.<h4>About the Analyzed Substances</h4>Thymosin Alpha-1 (Tα1) is a 28-amino-acid peptide involved in immune regulation and studied primarily for its immunomodulatory effects.Thymalin and Thymulin are substances associated with thymic function and have also been studied in relation to immune regulation. Thymulin is a naturally occurring thymic peptide involved particularly in T-cell development and function, while Thymalin is a polypeptide complex isolated from the thymus and investigated for its immunomodulatory effects.<h4>Key Features</h4><ul><li>Targeted identification and quantification of Thymosin Alpha-1 and Thymalin/Thymulin</li><li>Designed for lyophilised peptide blends</li><li>Results reported in mg per vial</li><li>Minimum sample amount of one whole unopened vial with lyophilisate</li><li>Average turnaround time of 7 business days</li><li>Peptide purity is not determined for blends</li></ul><h4>Analysis Parameters</h4><ul><li>Target compounds: Thymalin/Thymulin and Thymosin Alpha-1</li><li>CAS number – TA-1: 69521-94-4</li><li>Molecular weight – TA-1: 3108</li><li>Sequence – TA-1: Ac-Ser-Asp-Ala-Ala-Val-Asp-Thr-Ser-Ser-Glu-Ile-Thr-Thr-Lys-Asp-Leu-Lys-Glu-Lys-Lys-Glu-Val-Val-Glu-Glu-Ala-Glu-Asn-OH</li><li>CAS number – Thymalin: 78922-62-0</li><li>Molecular weight – Thymalin: 859</li><li>Sequence – Thymalin: H-Pyr-Ala-Lys-Ser-Gln-Gly-Gly-Ser-Asn-OH</li><li>Minimum amount of target compound for evaluation: Less than 1/20 of the usual dosage per vial</li><li>Result format: mg per vial</li><li>Minimum sample amount: One whole unopened vial with lyophilisate</li><li>Average turnaround time: 7 business days</li><li>Important note: Peptide purity is not measured</li></ul><blockquote>Important Notice<ul><li>Peptide purity cannot be determined in this blend because impurities from the individual components may overlap and cannot be reliably distinguished from one another.</li><li>This analysis is specifically intended for blends containing Thymosin Alpha-1 and Thymalin/Thymulin. It does not automatically screen the sample for other peptides, related compounds, contaminants, or undeclared substances.</li><li>For analysis, one whole unopened vial containing lyophilisate is required.</li></ul></blockquote><h4>Optional Additional Analyses</h4>The following optional laboratory services are available:<ul><li>TFA Analysis</li><li>Complete Raw Analytical Data</li><li>Fentanyl Screening</li><li>Batch Variance Testing</li><li>pH Measurement</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2522">Endotoxin Analysis</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2524">LCMS Screening for Peptide Contamination</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2527">Sterility Testing (TAMC + TYMC)</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2525">Heavy Metals Analysis (As, Cd, Pb, Hg)</a></li><li>Additional Laboratory Report</li></ul>

Vesugen analysis

Targeted HPLC analysis of Vesugen in lyophilised vials and raw API powders, including identity, amount, and peptide purity determination.

The Vesugen Analysis is a targeted laboratory test designed to confirm the identity, determine the amount, and assess the peptide purity of Vesugen in lyophilised vials and raw active pharmaceutical ingredient (API) powders.For lyophilised samples, results are reported in milligrams per vial together with peptide purity. Raw API powders can be evaluated using purity in % (m/m) together with peptide purity.<h4>About Vesugen</h4>Vesugen is a synthetic tripeptide with the amino acid sequence Lys-Glu-Asp (KED). It has been studied primarily in experimental research involving vascular endothelium and cellular processes associated with vascular ageing.<h4>Key Features</h4><ul><li>Targeted identification and quantification of Vesugen</li><li>Determination of peptide purity</li><li>Suitable for lyophilised vials and raw API powders</li><li>Analysis by HPLC</li><li>Results for lyophilised samples reported in mg per vial and peptide purity</li><li>Alternative result format for raw API powders includes purity in % (m/m) and peptide purity</li><li>Minimum sample amount of one whole unopened vial with lyophilisate</li><li>Minimum sample amount of 30 mg for raw API powders</li><li>Average turnaround time of 7 business days</li></ul><h4>Analysis Parameters</h4><ul><li>Target compound: Vesugen</li><li>Molecular weight: 390</li><li>Sequence: Lys-Glu-Asp-OH</li><li>Testing method: HPLC</li><li>Minimum amount of target compound for evaluation: Less than 1/20 of the usual dosage per vial</li><li>Result format for lyophilised samples: mg per vial and peptide purity</li><li>Result format for raw API powders: Purity in % (m/m) and peptide purity</li><li>Minimum sample amount for lyophilised samples: One whole unopened vial with lyophilisate</li><li>Minimum sample amount for raw API powders: 30 mg in a sealed glass vial to prevent the sample from absorbing moisture</li><li>Average turnaround time: 7 business days</li></ul><blockquote>Important Notice<ul><li>This analysis is specifically intended for Vesugen. It does not automatically screen the sample for other peptides, related compounds, degradation products, contaminants, or undeclared substances.</li><li>For lyophilised samples, one whole unopened vial containing lyophilisate is required.</li><li>Raw API powder should be supplied as at least 30 mg in a sealed glass vial to protect the sample from moisture.</li><li>The alternative result format for raw API powders includes both purity in % (m/m) and peptide purity.</li></ul></blockquote><h4>Optional Additional Analyses</h4>The following optional laboratory services are available:<ul><li>TFA Analysis</li><li>Complete Raw Analytical Data</li><li>Fentanyl Screening</li><li>Alternative Result Format: Purity in % (m/m)</li><li>Batch Variance Testing</li><li>pH Measurement</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2522">Endotoxin Analysis</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2526">CHNS Mass Report</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2524">LCMS Screening for Peptide Contamination</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2527">Sterility Testing (TAMC + TYMC)</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2525">Heavy Metals Analysis (As, Cd, Pb, Hg)</a></li><li>Additional Laboratory Report</li></ul>

Vilon analysis

Targeted HPLC analysis of Vilon in lyophilised vials and raw API powders, including identity, amount, and peptide purity determination.

The Vilon Analysis is a targeted laboratory test designed to confirm the identity, determine the amount, and assess the peptide purity of Vilon in lyophilised vials and raw active pharmaceutical ingredient (API) powders.For lyophilised samples, results are reported in milligrams per vial together with peptide purity. Raw API powders can be evaluated using purity in % (m/m) together with peptide purity.<h4>About Vilon</h4>Vilon is a synthetic dipeptide composed of lysine and glutamic acid (Lys-Glu). It has been studied primarily for its immunomodulatory effects, including its influence on T-cell differentiation and thymic immune function.<h4>Key Features</h4><ul><li>Targeted identification and quantification of Vilon</li><li>Determination of peptide purity</li><li>Suitable for lyophilised vials and raw API powders</li><li>Analysis by HPLC</li><li>Results for lyophilised samples reported in mg per vial and peptide purity</li><li>Alternative result format for raw API powders includes purity in % (m/m) and peptide purity</li><li>Minimum sample amount of one whole unopened vial with lyophilisate</li><li>Minimum sample amount of 30 mg for raw API powders</li><li>Average turnaround time of 7 business days</li></ul><h4>Analysis Parameters</h4><ul><li>Target compound: Vilon</li><li>CAS number: 45234-02-04</li><li>Molecular weight: 275.3</li><li>Sequence: NH2-Lys-Glu-OH</li><li>Testing method: HPLC</li><li>Minimum amount of target compound for evaluation: Less than 1/20 of the usual dosage per vial</li><li>Result format for lyophilised samples: mg per vial and peptide purity</li><li>Result format for raw API powders: Purity in % (m/m) and peptide purity</li><li>Minimum sample amount for lyophilised samples: One whole unopened vial with lyophilisate</li><li>Minimum sample amount for raw API powders: 30 mg in a sealed glass vial to prevent the sample from absorbing moisture</li><li>Average turnaround time: 7 business days</li></ul><blockquote>Important Notice<ul><li>This analysis is specifically intended for Vilon. It does not automatically screen the sample for other peptides, related compounds, degradation products, contaminants, or undeclared substances.</li><li>For lyophilised samples, one whole unopened vial containing lyophilisate is required.</li><li>Raw API powder should be supplied as at least 30 mg in a sealed glass vial to protect the sample from moisture.</li><li>The alternative result format for raw API powders includes both purity in % (m/m) and peptide purity.</li></ul></blockquote><h4>Optional Additional Analyses</h4>The following optional laboratory services are available:<ul><li>TFA Analysis</li><li>Complete Raw Analytical Data</li><li>Fentanyl Screening</li><li>Alternative Result Format: Purity in % (m/m)</li><li>Batch Variance Testing</li><li>pH Measurement</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2522">Endotoxin Analysis</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2526">CHNS Mass Report</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2524">LCMS Screening for Peptide Contamination</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2527">Sterility Testing (TAMC + TYMC)</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2525">Heavy Metals Analysis (As, Cd, Pb, Hg)</a></li><li>Additional Laboratory Report</li></ul>

VIP analysis

Targeted HPLC analysis of VIP in lyophilised vials and raw API powders, including identity, amount, and peptide purity determination.

The VIP Analysis is a targeted laboratory test designed to confirm the identity, determine the amount, and assess the peptide purity of VIP in lyophilised vials and raw active pharmaceutical ingredient (API) powders.For lyophilised samples, results are reported in milligrams per vial together with peptide purity. Raw API powders can be evaluated using purity in % (m/m) together with peptide purity.<h4>About VIP</h4>VIP (vasoactive intestinal peptide), also known as aviptadil, is a naturally occurring 28-amino-acid neuropeptide. It is involved in vasodilation, smooth muscle relaxation, digestive functions, and regulation of the nervous and immune systems.<h4>Key Features</h4><ul><li>Targeted identification and quantification of VIP</li><li>Determination of peptide purity</li><li>Suitable for lyophilised vials and raw API powders</li><li>Analysis by HPLC</li><li>Results for lyophilised samples reported in mg per vial and peptide purity</li><li>Alternative result format for raw API powders includes purity in % (m/m) and peptide purity</li><li>Minimum sample amount of one whole unopened vial with lyophilisate</li><li>Minimum sample amount of 30 mg for raw API powders</li><li>Average turnaround time of 7 business days</li></ul><h4>Analysis Parameters</h4><ul><li>Target compound: VIP</li><li>Other name: Aviptadil</li><li>CAS number: 40077-57-4</li><li>Molecular weight: 3327</li><li>Sequence: H-His-Ser-Asp-Ala-Val-Phe-Thr-Asp-Asn-Tyr-Thr-Arg-Leu-Arg-Lys-Gln-Met-Ala-Val-Lys-Lys-Tyr-Leu-Asn-Ser-Ile-Leu-Asn-OH</li><li>Testing method: HPLC</li><li>Minimum amount of target compound for evaluation: Less than 1/20 of the usual dosage per vial</li><li>Result format for lyophilised samples: mg per vial and peptide purity</li><li>Result format for raw API powders: Purity in % (m/m) and peptide purity</li><li>Minimum sample amount for lyophilised samples: One whole unopened vial with lyophilisate</li><li>Minimum sample amount for raw API powders: 30 mg in a sealed glass vial to prevent the sample from absorbing moisture</li><li>Average turnaround time: 7 business days</li></ul><blockquote>Important Notice<ul><li>This analysis is specifically intended for VIP. It does not automatically screen the sample for related peptides, degradation products, contaminants, or undeclared substances.</li><li>For lyophilised samples, one whole unopened vial containing lyophilisate is required.</li><li>Raw API powder should be supplied as at least 30 mg in a sealed glass vial to protect the sample from moisture.</li><li>The alternative result format for raw API powders includes both purity in % (m/m) and peptide purity.</li></ul></blockquote><h4>Optional Additional Analyses</h4>The following optional laboratory services are available:<ul><li>TFA Analysis</li><li>Complete Raw Analytical Data</li><li>Fentanyl Screening</li><li>Alternative Result Format: Purity in % (m/m)</li><li>Batch Variance Testing</li><li>pH Measurement</li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2522">Endotoxin Analysis</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2526">CHNS Mass Report</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2524">LCMS Screening for Peptide Contamination</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2527">Sterility Testing (TAMC + TYMC)</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/2525">Heavy Metals Analysis (As, Cd, Pb, Hg)</a></li><li>Additional Laboratory Report</li></ul>

Products from category Pharmaceutical analyses - page 1

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