Etoricoxib Impurity 11 is a impurity of etoricoxib, a nonsteroidal anti-inflammatory drug (NSAID) utilized for pain relief and inflammation reduction. Impurity 11 is classified as a pharmaceutical reference standard, specifically associated with etoricoxib. Its principal role is in pharmaceutical quality control, serving as a reference standard for precise analytical testing. This testing enables the accurate identification and quantification of Impurity 11 within etoricoxib-based medications, ensuring their purity and compliance with stringent regulatory standards. Buy high quality Etoricoxib Impurity 11 from Chemicea Pharma. Chemecia Pharma is one of the leading manufacturer and exporter of Etoricoxib Impurity 11