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Catsyn? 4',4''',4''''',4'''''''-(Ethene-1,1,2,2-tetrayl)tetrakis(([1,1'-biphenyl]-4-carbaldehyde)) | CAS 1624970-54-2?? ?? ??? ?????. ? ??? null??, ???? g/mol??, ??? ????? NLT 98%???.