英文同义词: | 4-Oxo-4,5,6,7-tetrahydrobenzofuran-2-carboxylic acid;4,5,6,7-tetrahydro-4-oxo-2-benzofurancarboxylic acid;2-Benzofurancarboxylic acid, 4,5,6,7-tetrahydro-4-oxo-;4-oxo-4,5,6,7-tetrahydro-1-benzofuran-2-carboxylic acid;4-oxo-6,7-dihydro-5H-1-benzofuran-2-carboxylic acid |