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Catsyn? [1,1':3',1''-Terphenyl]-3,3'',5,5''-tetracarboxylic acid, 5'-(4-carboxyphenyl)- | CAS 1250980-06-3?? ?? ??? ?????. ? ??? C29H18O10??, ???? 526.45g/mol??, ??? ????? NLT 98%???.