CAS:2420-87-3 Foirmle Molecular:C16H6O6 Cuideam moileciuil:294.22 EINECS:219-342-9 Co-fhaclan:3,3',4,4'-Biphenyltetracarboxylic dianhydride 97%; 4,4'-Biphthalic Anhydride (air a ghlanadh le sublimation); 3,3'4,4'- Biphenyl tetracarboxylic acid dianhydride (s-BPDA); S-BDPA; S-BPDA; [5,5'-biisobenzofuran] -1,1',3,3'-tetron; [5,5'-Biisobenzofuran] -1,1',3,3'-tetron; 5,5'-Biisobenzofuran-1,1',3,3'-tetron