英文别名Parecoxib Impurity 29; Parecoxib Impurity 16; N-[4-(5-methyl-4-phenyl-1,2-oxazol-3-yl)phenyl]sulfonylpropanamide; Parecoxib Regio Isomer; Parecoxib sodium Impurity 40; Parecoxib Sodium Impurity 33; N-[[4-(5-Methyl-4-phenyl-3-isoxazolyl)phenyl]sulfonyl]propanamide; Propanamide, N-[[4-(5-methyl-4-phenyl-3-isoxazolyl)phenyl]sulfonyl]- 
