1,1,1,2,2-pentafluoro-3-(1,2,2-trifluoroethenoxy)propane

2,2-difluoro-2-(4,5,5-trifluoro-2,2-bis(trifluoromethyl)-1,3-dioxolan-4-yl)acetyl fluoride

sodium perfluoro-3-oxa-2-methylhexanoate