La mid ah:

8-Amino-4-oxo-2-tetrazol-5-yl-4H-1-benzopyran Hydrochloride;8-Amino-2--(2H-tetrazol-5-yl)-4H-1-benzopyran-4-hal hydrochloride; 8-aMino-2-(1,2,3,4-tetrazol-5-yl)-4H-chroMen-4-hal hydrochloride;8-aMino-2-(1H-tetrazol-5-yl)-4H-chroMen -4-hal hydrochloride;8-Amino-2--(2H-tetrazol-5-yl)-4H-chromen-4-hal hydrochloride;4H-1-Benzopyran-4-hal, 8-aMino-2- (2H- tetrazol-5-yl)-, hydrochloride;8-Amino-2-(5-tetrazolyl)-4-oxo-4(H)-1-benzopyran hydrochloride;8-Amino-4-oxo-2-(tetrazol-5) -yl)-4H-1-benzopyran HCl