(2-endo,3-exo)-Bicyclo(2.2.1)hept-5-ene-2,3-dicarbonyl dichloride 3-09-00-04048 (Beilstein Handbook Reference) 4582-21-2 5-Norbornene-2,3-dicarbonyl chloride, trans- BRN 3134243 Bicyclo(2.2.1)hept-5-ene-2,3-dicarbonyl dichloride, (2-endo,3-exo)- (9CI) EINECS 224-967-5 NSC 103156 trans-Bicyclo(2.2.1)hept-5-enyl-2,3-dicarbonylchloride