英文别名Parecoxib Sodium Impurity K; Valdecoxib Sulfonic Acid; 4-(5-Methyl-3-phenyl-1,2-oxazol-4-yl)benzenesulfonic acid; 4-(5-Methyl-3-phenyl-4-isoxazolyl)benzenesulfonic acid; Parecoxib Impurity 25; Benzenesulfonic acid, 4-(5-methyl-3-phenyl-4-isoxazolyl)-; Valdecoxib metabolite M8; 4-(5-Methyl-3-phenyl-4-isoxazolyl)benzenesulphonic acid; 4-(5-Methyl-3-phenylisoxazol-4-yl)phenylsulfonic acid; 4-(5-Methyl-3-phenylisoxazol-4-yl)phenylsulphonic acid; Benzenesulphonic acid, 4-(5-methyl-3-phenyl-4-isoxazolyl)-; Parecoxib Impurity 8; 4-(5-Methyl-3-phenyl-1,2-oxazol-4-yl)benzene-1-sulfonic acid; 4-(5-methyl-3-phenyl-isoxazol-4-yl)benzenesulfonic acid 
