CAS;2420-87-3 Formulae hypotheticae:C16H6O6 Pondus hypotheticum:294.22 EINECS:219-342-9 Synonyma:3,3', 4,4'-Biphenyltetracarboxylic dianhydride 97%; 4,4'-biphthalica anhydrida (purificata sublimatione); 3,3'4,4'-Biphenyl acidum tetracarboxylicum dianhydride(s-BPDA); S-BDPA; S-BPDA; [5,5'-biisobenzofuran] -1,1',3,3'-tetrone; [5,5'-Biisobenzofuran] -1,1',3,3'-tetrone; 5,5'-Biisobenzofuran-1,1',3,3'-tetrone