N-((4-(5-Methyl-3-(3-(N-propionylsulfamoyl)phenyl)isoxazol-4-yl)phenyl)sulfonyl)propionamide is a reagent for the synthesis of Parecoxib Sodium Impurity. Also an Impurity of Parecoxib Sodium (P193275), which is an analgesic and an anti-inflammatory agent.
