2H-1-Benzopyran-2-one, 6-methyl-8-(2-propenyloxy)-3-(1H-tetrazol-5-yl)- 6-Methyl-8-(2-propenyloxy)-3-(1H-tetrazol-5-yl)-2H-1-benzopyran-2-one 76239-46-8 8-Allyloxy-6-methyl-3-(1H-tetrazol-5-yl)coumarin