Synonyms:
4,8-etheno-1h,3h-benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone,3a,4,4a,7a,8,8a-hexahydro-4,9-dimethyl- ; 1,8-dimethylbicyclo[2.2.2]octa-7-ene-2,3,5,6-tetracarboxylic acid 2,3:5,6-dianhydride ; 3a,4,4a,7a,8,8a-hexahydro-4,9-dimethyl-4,8-etheno-1h,3h-benzo[1,2-c:4,5-c']difuran-1,3,5,7-tetrone ; 1,8-dimethylbicyclo(2,2,2)oct-7-ene-2,3,5,6-tetracarboxylic acid dianhydride ; 1,14-dimethyl-4,10-dioxatetracyclo[5.5.2.0(2,6).0(8,12)]tetradec-13-ene-3,5,9,11-tetraone ; 1,14-dimethyl-4,10-dioxatetracyclo[5.5.2.0~2,6~.0~8,12~]tetradec-13-ene-3,5,9,11-tet