英文别名Parecoxib Sodium Impurity 78; Parecoxib Sodium Impurity 39; Parecoxib Sodium Impurity 47; Parecoxib Impurity 47; 4-[3-methyl-5-phenylisoxazol-4-yl]benzenesulfonamide; 4-(3-methyl-5-phenyl-1,2-oxazol-4-yl)benzenesulfonamide; Benzenesulfonamide, 4-(3-methyl-5-phenyl-4-isoxazolyl)- 
