英文同义词: | 1-ETHYL-2,3-DIOXO-1,2,3,4-TETRAHYDRO-QUINOXALINE-6-CARBOXYLIC ACID;1-ethyl-2,3-dioxo-4H-quinoxaline-6-carboxylic acid;6-Quinoxalinecarboxylic acid, 1-ethyl-1,2,3,4-tetrahydro-2,3-dioxo-;1-Ethyl-1,2,3,4-tetrahydro-2,3-dioxo-6-quinoxalinecarboxylic acid |