Decafluoro-3-oxa-1,6-heptadiene

(Heptafluoro-3-butenyl)(trifluorovinyl) ether

1,1,2,4,4,5,5,6,7,7-Decafluoro-3-oxa-1,6-heptadiene

1,1,2,3,3,4,4-Heptafluoro-4-[(trifluoroethenyl)oxy]-1-butene

(1,2,2-Trifluorovinyl)1,1,2,2,3,4,4-heptafluoro-3-butenyl ether

1,1,2,3,3,4,4-Heptafluoro-4-(1,2,2-trifluoroethenyloxy)-1-butene