英文别名Pranlukast Impurity 5; N-(2-cyano-4-oxochromen-8-yl)-4-(4-phenylbutoxy)benzamide; N-(2-Cyano-4-oxo-4H-1-benzopyran-8-yl)-4-(4-phenylbutoxy)benzamide; 8-[4-(4-phenyl-1-butoxy) benzoyl]amino-2-cyano-4-oxo-4H-benzopyran; Pranlukast Impurity 3; Benzamide, N-(2-cyano-4-oxo-4H-1-benzopyran-8-yl)-4-(4-phenylbutoxy)-; Pranlukast Impurity 13 
