1 1 1 3 3 3-hexafluoro-2-methylpropan-2-ol July 8, 2019 16 32 64 128 1 1 1 3 3 3-hexafluorpropan 1 1 1 3 3 3-hexafluoroisopropanol 1 1 1 3 3 3-hexafluoro-2-propanol sigma 1 1 1 3 3 3-hexafluoro-2 propanol