英文别名1,2-Cyclopentanedicarboxylic acid,4-oxo-,dimethyl ester; Dimethyl 4-oxo-1,2-cyclopentanedicarboxylate; 4-Oxo-cyclopentane-1,2-dicarboxylic acid dimethyl ester; 1,2-Cyclopentanedicarboxylic acid, 4-oxo-, dimethyl ester; dimethyl-4-oxo-1,2-cyclopentanedi carboxylate; (1R,2R)-DIMETHYL 4-OXOCYCLOPENTANE-1,2-DICARBOXYLATE; 1,2-Cyclopentanedicarboxylic acid, 4-oxo-, 1,2-dimethyl ester; 4-oxyclopentane-1,2-dicarboxylic acidimethyl ester 
