142689-12-1 1H-2-Benzopyran-7-carboxylic acid, 3,4-dihydro-6,8-dihydroxy-3,5-dimethyl-4-(trifluoromethyl)- 3,4-Dihydro-6,8-dihydroxy-3,5-dimethyl-4-(trifluoromethyl)-1H-2-benzopyran-7-carboxylic acid