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Catsyn? [1,1'-Biphenyl]-4-carboxaldehyde,4'-[bis(4'-formyl[1,1'-biphenyl]-4-YL)amino]- | CAS 872689-79-7?? ?? ??? ?????. ? ??? C39H27NO3??, ???? 557.64g/mol??, ??? ????? NLT 98%???.