3a,4,7,7a-Tetrahydro-4,7-ethanoisobenzofuran-1,3-dione

4,7-Ethenoisobenzofuran-1,3-dione, 3a,4,5,6,7,7a-hexahydro-

4,7-Ethanoisobenzofuran-1,3-dione,3a,4,7,7a-tetrahydro-

Bicyclo[2.2.2]oct-5-ene-2,3-dicarboxylic anhydride

3,6-Endoethylene-4-cyclohexene-1,2-dicarboxylic anhydride

3,6-Endoethylenephthalic anhydride, 1,2,3,6-tetrahydro-

3a,4,7,7a-Tetrahydro-4,7-ethano-2-benzofuran-1,3-dione

Bicyclooctenedicarboxylic anhydride

NSC 4556

Bicylo[2,2,2]oct-5-ene-2,3-dicarboxylic anhydride