Quantitation of N-Nitroso N-Desmethyl Diphenhydramine in Diphenhydramine HCl API

Application Note Pharmaceuticals Quantitation of N-Nitroso Sitagliptin Impurity (NTTP) in Sitagliptin and Metformin Combination Drug Product Using the Agilent 6475 LC/TQ Authors Preeti Bharatiya, Prasanth Joseph, Vivek Dhyani, Saikat Banerjee, and Kannan Balakrishnan Agilent Technologies, Inc. Abstract Nitrosamine impurities are…

Application Note Pharmeceuticals Highly Sensitive Quantification of Mutagenic NDSRI N-Nitroso Propranolol in Propranolol API and 40 mg Tablets Using LC/MS/MS Authors Detection of regulated genotoxic impurities from the drug manufacturing process Kartheek Srinivas Chidella, Gaurav Kulkarni, Saikat Banerjee, and Kannan…

Application Note Pharmaceuticals Quantitation of N-Nitroso Nebivolol in Nebivolol Tablet Formulation Using an Agilent 6495D triple quadrupole LC/MS system Authors Abstract Prasanth Joseph, Saikat Bhattacharya, Vivek Dhyani, and Saikat Banerjee Agilent Technologies, Inc. N-Nitroso Nebivolol, a nitroso drug substance-related impurity…

Poster Reprint ASMS 2026 TP 402 Quantitation of N-Nitroso Duloxetine NNitrosamine Drug Substance Related Impurities (NDSRI) in API and Formulation by 6475 LC/TQ 1Saravanan Thangavel, 2Vivek Dhyani and 3Saikat Banerjee 1 Application Engineer, Agilent Technologies Inc., 2 Application Engineering Manager,…