Chemical Name: rel-(3aR,4R,7S,7aS)-Hexahydro-4,7-methanoisobenzofuran-1,3-dione ; endo-cis-Bicyclo[2.2.1]heptane-2,3-dicarboxylic anhydride
Synonym: endo-2,3-Norbornanedicarboxylic acid anhydride ; Dihydronadic anhydride
Smile: O=C1OC([C@@]2([H])[C@]1([H])[C@@]3([H])CC[C@@]([H])2C3)=O