509074-26-4

Parecoxib-002 Parecoxib Sodium-5 Valdecoxib Impurity 6 Valdecoxib IMpurity F Parecoxib SodiuM IMpurity F Parecoxib Sodium Impurity 55 Valdecoxib Sulfonyl Chloride Valdecoxib Sulfonyl Chloride,Valdecoxib IMpurity F 4-(5-Methyl-3-phenyl-4-isoxazolyl)-benzenesulfonyl Parecoxib impurity D: 4-benzene ring-4-sulfonyl chloride 4-(5-Methyl-3-phenyl-4-isoxazolyl)benzenesulfonyl Chloride 4-(5-methyl-3-phenylisoxazol-4-yl)benzenesulfonyl chloride 4-(5-Methyl-3-phenylisoxazol-4-yl)benzene-1-sulfonyl chloride Benzenesulfonyl chloride, 4-(5-methyl-3-phenyl-4-isoxazolyl)- 4-(5-methyl-3--phenyl-1,2-oxazol-4-yl)benzenesulfonyl chloride 4-(5-methyl-3-phenyl-1,2-oxazol-4-yl)benzene-1-sulfonyl chloride 4-(5-Methyl-3-phenylisoxazol-4-yl)benzenesulfonyl Chloride (Valdecoxib Sulfonyl Chloride) Parecoxib impurity 3/Valdecoxib Sulfonyl Chloride/4-(5-Methyl-3-phenylisoxazol-4-yl)benzene-1-sulfonyl chloride