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Catsyn? 2H-Pyran, 2-(3',5'-difluoro[1,1'-biphenyl]-4-YL)-5-ethyltetrahydro-, (2R,5S)-rel- | CAS 1700445-26-6?? ?? ??? ?????. ? ??? C19H20F2O??, ???? 302.36g/mol??, ??? ????? NLT 98%???.