3-(1-(Difluoro((trifluorovinyl)oxy)methyl)-1,2,2,2-tetrafluoroethoxy)-2,2,3,3-tetrafluoropropiononitrile 3-(1-(Difluoro((trifluorovinyl)oxy)methyl)tetrafluoroethoxy)tetrafluoropropionitrile 69804-19-9 EINECS 274-123-5 Propanenitrile, 3-(1-(difluoro((trifluoroethenyl)oxy)methyl)-1,2,2,2-tetrafluoroethoxy)-2,2,3,3-tetrafluoro-