英文别名
4-Oxo-2-methyl-4,5,6,7-tetrahydro-cumaron-carbonsaeure-(3);2-methyl-4-oxo-4,5,6,7-tetrahydro-benzofuran-3-carboxylic acid;2-Methyl-4-oxo-4,5,6,7-tetrahydro-1-benzofuran-3-carboxylic acid;2-methyl-4-oxo-6,7-dihydro-5H-1-benzofuran-3-carboxylic acid