Of the above trinitrates, the cis-cis-cis and the cis-trans-cis isomers melted at 70° and 88°C, respectively, but the racemic cis-cis-trans form remained as a colorless viscid oil. When dissolved in excess 0.105 N aqueous–alcoholic sodium hydroxide at 20°C, the cis-cis-cis isomer hydrolyzed most rapidly but formed least nitrite, and the solution developed most color. The same isomer evolved the smallest amount of oxides of nitrogen when kept at 106°C., but was more readily detonated by shock than was the cis-trans-cis-trinitrate. The relative reactivities toward alkali and heat of the much more stable cis and tran-cyclo-hexane-1,2-diol dinitrates, which melted at 24° and 18.5°C., respectively, were as described for the trinitrates, but their relative sensitivities to shock were no less. All five compounds were new.