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