3,3,3-Trifluoropropyne661-54-1100 % similar Hexafluoro-2-butyne692-50-240 % similar Trifluoroacetonitrile353-85-533 % similar 2,2,2-Trifluoroethan-1,1-D2-ol-D77253-67-933 % similar 3,3-Dimethyl-1-butyne917-92-033 % similar