Synonyms:
8-amino-2-(1h-tetrazol-5-yl)-4h-1-benzopyran-4-one (intermediate of pranlukast) ; 8-amino-2-(1h-tetrazol-5-yl)-4h-1-benzopyran-4-one ; 8-amino-4-oxo-2-(tetrazol-5-yl)-4h-1-benzopyran ; 8-amino-2-(2h-tetrazol-5-yl)-4h-1-benzopyran-4-one ; 8-amino-2-(1h-tetrazol-5-yl)-4h-1-benzopyran-4-one hydrochloride ; 8-amino-2-tetrazol-5-yl-4-oxo-4h-1-benzopyran ; 8-amino-4-oxo-2-(tetrazol-5-yl)benzopyran ; 8-amino-2-(1h-tetrazol-5-yl)-4h-chromen-4-one ; 8-amino-4-oxo-2-(1h-tetrazole-5-yl)-4h-1-benzopyran hydrochloride