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2,2'3,3'-Biphenyl tetracarboxylic acid dianhydride( i-BPDA) Structure

2,2'3,3'-Biphenyl tetracarboxylic acid dianhydride( i-BPDA)

2,2'3,3'-Biphenyl tetracarboxylic acid dianhydride( i-BPDA) Supplier