Synonyms: Tricyclo[4.2.1.02,5]nona-3,7-diene-3,4-dicarboxylicacid, dimethyl ester, (1R,2R,5S,6S)-rel- (9CI);Tricyclo[4.2.1.02,5]nona-3,7-diene-3,4-dicarboxylic acid, dimethyl ester, (1a,2b,5b,6a)-;Tricyclo[4.2.1.02,5]nona-3,7-diene-3,4-dicarboxylic acid, dimethyl ester, exo-(8CI)