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Catsyn? 1,1,2,2-Tetrakis(4'-(pyridin-4-YL)-[1,1'-biphenyl]-4-YL)ethene | CAS 2424054-03-3?? ?? ??? ?????. ? ??? C70H48N4??, ???? 945.16g/mol??, ??? ????? NLT 98%???.