Synonyms: 5,6-Dibromohexahydro-4,7-methanoisobenzofuran-1,3-dione;5,6-dibromohexahydro-4,7-methano-2-benzofuran-1,3-dione;4,7-methanoisobenzofuran-1,3-dione, 5,6-dibromohexahydro-;2,3-Norbornanedicarboxylic anhydride, 5,6-dibromo-;5,6-Dibromo-2,3-norbornanedicarboxylic anhydride;Nsc6139