Category:
Active Pharmaceutical Ingredients
CAS NO:
37928-17-9
Standard:
EP,
Parecoxib Impurity 1 is a critical reference standard used in pharmaceutical quality control to monitor the synthesis and stability of the COX-2 selective inhibitor Parecoxib. Produced via oxidative coupling or specific degradation pathways, its molecular formula is C18H20N4O3S (CAS: 197563-27-0).
Store strictly at -20°C under inert atmosphere to prevent hydrolysis. Handling requires PPE due to potential irritancy; avoid inhalation and skin contact. Not for human therapeutic use.