O-(5-Norbornene-2,3-dicarboximido)-N,N,N',N'-tetramethyluronium Hexafluorophosphate208462-94-6100 % similar 3a,4,7,7a-Tetrahydro-2-hydroxy-4,7-methano-1H-isoindole-1,3(2H)-dione21715-90-241 % similar 2-(5-Norborene-2,3-dicarboximido)-1,1,3,3-tetramethyluronium tetrafluoroborate125700-73-441 % similar N-Octyl bicycloheptene dicarboximide113-48-434 % similar Dimethyl 5-norbornene-2,3-dicarboxylate5826-73-332 % similar 5-Norbornene-2-endo,3-exo-dicarboxylic acid1200-88-031 % similar Carbic anhydride129-64-631 % similar Himic anhydride2746-19-231 % similar 3a,4,7,7a-Tetrahydro-4,7-methano-1H-isoindole-1,3(2H)-dione3647-74-331 % similar 5-Norbornene-2,3-dicarboxylic acid3813-52-331 % similar Nadic anhydride826-62-031 % similar