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Catsyn? 4,4'-(((Perfluoropropane-2,2-diyl)bis(4,1-phenylene))bis(oxy))dianiline | CAS 69563-88-8?? ?? ??? ?????. ? ??? C27H20F6N2O2??, ???? 518.45g/mol??, ??? ????? ≥ 99%???.