CAS:2420-87-3 Molekylformel:C16H6O6 Molekylvikt:294,22 EINECS:219-342-9 Synonymer:3,3',4,4'-bifenyltetrakarboxylsyradianhydrid 97%; 4,4'-biftalsyraanhydrid (renad genom sublimering); 3,3'4,4'-bifenyltetrakarboxylsyradianhydrid(s-BPDA); S-BDPA; S-BPDA; [5,5'-biisobensofuran]-1,1',3,3'-tetron; [5,5'-biisobensofuran]-1,1',3,3'-tetron; 5,5'-biisobensofuran-1,1',3,3'-tetron