1,1,1,7,7,7-Hexafluoro-4-methyl-2,6-bis(trifluoromethyl)-3-heptene-2,6-diol

(E)-1,1,1,7,7,7-hexafluoro-4-methyl-2,6-bis(trifluoromethyl)hept-3-ene -2,6-diol