1,1,1,3,3,3-Hexafluoro-2,2-propanediamine 1,1,1,3,3,3-Hexafluoropropane-2,2-diamine 1737-80-0 2,2-Diaminohexafluoropropane 2,2-Propanediamine, 1,1,1,3,3,3-hexafluoro- EINECS 217-087-8 NSC 111183