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Catsyn? 5'-(4-Carboxyphenyl)-[1,1':3',1''-terphenyl]-3,4'',5-tricarboxylicacid | CAS 1250980-04-1?? ?? ??? ?????. ? ??? C28H18O8??, ???? 482.44g/mol??, ??? ????? NLT 98%???.