Synonyms: 5-Norbornene-2,3-dicarboxylicacid, methyl ester, cis-endo- (8CI); Bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylicacid, monomethyl ester, (1R,2S,3R,4S)-rel- (9CI);Bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid, monomethyl ester, (endo,endo)-;(1R,2S,3R,4S)-rel-Bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid monomethylester; NSC 140603; cis-Monomethyl 5-norbornene-endo-2,3-dicarboxylate