95%+

[1,1′:3′,1”:3”,1”’:3”’,1””-Quinquephenyl]-4,4””-dicarboxylic acid, 5′,5”’-bis(4-carboxyphenyl)-5”-(4,4”-dicarboxy[1,1′:3′,1”-terphenyl]-5′-yl)-_CAS:1331745-95-9