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Catsyn? 4'',4''''',4'''''''',4'''''''''''-(Ethene-1,1,2,2-tetrayl)tetrakis(([1,1':4',1''-terphenyl]-4-carbaldehyde)) | CAS 2567920-74-3?? ?? ??? ?????. ? ??? null??, ???? g/mol??, ??? ????? NLT 98%???.