Synonyms: 4-Oxocyclopentane-1,2-dicarboxylic acid;4-Oxo-cyclopentane-1,2-dicarboxylic acid;1703-61-3;4-Oxo-1,2-cyclopentanedicarboxylic acid;NSC146529;AC1L66OF;AC1Q5TE4;Jsp003475;AR-1G4219;Cyclopentanone-3,4-dicarboxylic acid;AC-3090;AG-E-19605;NSC-146529;AB1006488;TL8006221;TR-039640;4-oxidanylidenecyclopentane-1,2-dicarboxylic acid;A811193;I14-11287;1,2-Cyclopentanedicarboxylic acid, 4-oxo-; 4-Oxo-1,2-cyclopentanedicarboxylic acid