(1alpha,2alpha,3beta,6beta)-1,2,3,6-Tetrahydro-3,6-methanophthalicanhydride 2746-19-2 38733-15-2 4,7-Methanoisobenzofuran-1,3-dione, 3a,4,7,7a-tetrahydro-, (3aR,4R,7S,7aS)-rel- 4,7-Methanoisobenzofuran-1,3-dione, 3a,4,7,7a-tetrahydro-, (3aalpha,4beta,7beta,7aalpha)- (9CI) 41527-41-7 5-Norbornene-2,3-dicarboxylic anhydride, cis-exo- (8CI) EINECS 220-384-5 Exo-cis-5-Norbornene-2,3-dicarboxylic anhydride Himic anhydride NSC 110659 exo-3,6-Methylene-1,2,3,6-tetrahydrophthalic anhydride exo-5-Norbornene-2,3-dicarboxylic anhydride