66172-15-4 (4E)-4-[[2-(1,1,1,3,3,3-hexafluoropropan-2-yl)-4-(1,1,1,3,3,3-hexafluoropropan-2-ylidene)-1,3-dithietan-2-yl]-[4-(1,1,1,3,3,3-hexafluoropropan-2-ylidene)-2-methyl-1,3-dithietan-2-yl]methylidene]-6-(1, 66172-24-5 2,6,8-tris(1,1,1,3,3,3-hexafluoropropan-2-ylidene)-5-methyl-1,3,7,9-tetrathia-5-azaspiro[3.5]nonane