Category:
Preclinical Research Services
Standard:
USP, EP,
Sitagliptin Impurity 78, chemically identified as Nitroso-STG-19 (NTTP), is a critical reference standard for the quality control of Sitagliptin API. This nitrosamine derivative arises primarily during specific synthetic pathways involving diazotization steps. The molecular formula is C16H24N4O2 with CAS No. 209566-43-4.
Store strictly under inert atmosphere at -20°C to prevent decomposition. Handle only within certified fume hoods due to potential genotoxicity. Do not use in clinical formulations; intended solely for analytical laboratory use.