Ketoprofen EP Impurity B with CAS No: 22071-22-3 is an impurity standard of Ketoprofen. Ketoprofen is a nonsteroidal anti-inflammatory drug (NSAID) used to relieve pain, reduce inflammation and lower fever. Ketoconazole is belongs to the same class of medications as ibuprofen and naproxen. Ketoprofen is available both as a prescription medication in higher doses and as an over-the-counter (OTC) medication at lower doses. It works by inhibiting enzymes (COX-1 and COX-2) that play a role in the production of prostaglandins which are chemicals that contribute to pain, inflammation and fever. Buy high quality Ketoprofen EP Impurity B from Molsyns Research. Molsyns Research is one of the leading manufacturer and exporter of Ketoprofen EP Impurity B