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Catsyn? 4,4'-(3,8-Bis((4-aminophenyl)ethynyl)pyrene-1,6-diyl)dibenzaldehyde | CAS 2375652-85-8?? ?? ??? ?????. ? ??? C46H28N2O2??, ???? 640.73g/mol??, ??? ????? NLT 98%???.