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Catsyn? 5',5''-Bis(4-aminophenyl)-[1,1':3',1'':3'',1'''-quaterphenyl]-4,4'''-diamine | CAS 2411406-15-8?? ?? ??? ?????. ? ??? C36H30N4??, ???? 518.65g/mol??, ??? ????? NLT 98%???.