5-Norbornene-2,3-dicarboximide, N-cyclohexyl-, (Z)-endo- RB8330000 cis-3,6-Endomethylene-1,2,3,6-tetrahydrophthalic acid N-cyclohexylimide cis-endo-N-Cyclohexyl-5-norbornene-2,3-dicarboximide