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Catsyn? N-(biphenyl-4-YL)-N-(4'-bromobiphenyl-4-YL)-9,9-dimethyl-9H-fluoren-2-amine | CAS 1268621-99-3?? ?? ??? ?????. ? ??? C39H30BrN??, ???? 592.57g/mol??, ??? ????? NLT 98%???.