CAS Registry Number

CAS 172617-84-4 — N-Demethylazithromycin USP CRS

N-Demethylazithromycin USP CRS is a key analytical standard and metabolite of azithromycin, used primarily in pharmaceutical research, method validation, and forensic analysis to study drug metabolism and purity. This certified reference standard ensures accurate quantification in biological and chemical assays. CAS 172617-84-4 | Molecular formula C37H70N2O12 | Molecular weight 734.96 g/mol | Storage: -15 to -20°C | Non-hazardous (no signal word). Molekula supplies N-Demethylazithromycin USP CRS from research to bulk quantities with full documentation and ISO 9001:2015 traceability.