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Catsyn? 5,5',5'',5'''-((Ethene-1,1,2,2-tetrayltetrakis(benzene-4,1-diyl))tetrakis(ethyne-2,1-diyl))tetraisophthalic acid | CAS 1415119-03-7?? ?? ??? ?????. ? ??? C66H36O16??, ???? 1084.98g/mol??, ??? ????? NLT 98%???.