[4,5′-Biisobenzofuran]-1,1′,3,3′-tetrone
2,3,3′,4′-Biphenyltetracarboxylic dianhydride
2,3,3′,4′-Biphenyltetracarboxylic acid dianhydride
1,1′-Biphenyl-2,3,3′,4′-tetracarboxylic acid dianhydride
2,3,3′,4′-Biphenyltetracarboxylic anhydride
2,3′,3,4′-Biphenyltetracarboxylic acid dianhydride
4,3′-Biphthalic anhydride
2,3′,3,4′-Biphenyltetracarboxylic dianhydride
2,3,3′,4′-Diphenyltetracarboxylic dianhydride
[4,5′-Biisobenzofuran]-1,1′,3,3′-tetraone
2,3,3′,4′-Biphenyltetracarbocylic dianhydride
a-BPDA