英文同义词: | 4-HYDROXY-2,2-DIMETHYLCHROMAN-5-CARBOXYLIC ACID;4-hydroxy-2,2-dimethyl-3,4-dihydrochromene-5-carboxylic acid;3,4-Dihydro-4-hydroxy-2,2-dimethyl-2H-1-benzopyran-5-carboxylic acid;2H-1-Benzopyran-5-carboxylic acid, 3,4-dihydro-4-hydroxy-2,2-dimethyl- |