英文别名4-benzyl-5-methyl-3-phenyl-1,2-oxazole; 3-Phenyl-4-benzyl-5-methylisoxazole; Isoxazole,5-methyl-3-phenyl-4-(phenylmethyl); 5-Methyl-3-phenyl-4-(phenylmethyl)isoxazole; Parecoxib Impurity 13; Parecoxib Impurity 22; Valdecoxib Impurity 3; Valdecoxib Impurity 4 
