英文别名4-OXOCHROMAN-7-CARBOXYLIC ACID; 2H-1-Benzopyran-7-carboxylic acid, 3,4-dihydro-4-oxo-; 4-oxo-3,4-dihydro-2H-1-benzopyran-7-carboxylic acid; 4-Oxo-7-chromanecarboxylic acid; 4-oxo-chroman-7-carboxylic acid; 4-Oxo-chroman-carbonsaeure-(7); acide chromannone-4 carboxylique-7 
