Synonyms: 1,2-Cyclopropanedicarboxylicacid, monoethyl ester, (1R,2R)-rel- (9CI); 1,2-Cyclopropanedicarboxylic acid,monoethyl ester, trans-; trans-1,2-Cyclopropanedicarboxylic acid, ethyl ester(6CI); Ethyl trans-2-carboxycyclopropanecarboxylate; Monoethyltrans-1,2-cyclopropanedicarboxylate; NSC 249244;rel-(1R,2R)-Cyclopropane-1,2-dicarboxylic acid ethyl ester;trans-2-(Ethoxycarbonyl)cyclopropanecarboxylic acid