103177-37-3 4-Oxo-8-(4-(4-phenylbutoxy)benzoylamino)-2-(tetrazol-5-yl)-4H-1-benzopyran Benzamide, N-(4-oxo-2-(1H-tetrazol-5-yl)-4H-1-benzopyran-8-yl)-4-(4-phenylbutoxy)- N-(4-Oxo-2-(1H-tetrazol-5-yl)-4H-1-benzopyran-8-yl)-4-(4-phenylbutoxy)benzamide N-(4-Oxo-2-(1H-tetrazol-5-yl)-4H-1-benzopyran-8-yl)-p-(4-phenylbutoxy)benzamide ONO 1078 ONO-RS 411 Pranlukast Pranlukast [BAN:INN] RS 411 SB 205312