2H-1-Benzopyran-2-one, 8-chloro-4-methyl-3-(1H-tetrazol-5-yl)- 56394-33-3 8-Chloro-4-methyl-3-(1H-tetrazol-5-yl)-2H-1-benzopyran-2-one 8-Chloro-4-methyl-3-(1H-tetrazol-5-yl)coumarin