1 9D2 2-ethyl-2-(hydroxymethyl)propane-1,3-diol 1.000 2 3SY 2,2-bis(hydroxymethyl)propane-1,3-diol 0.800 3 1MI 2-(hydroxymethyl)butane-1,4-diol 0.700 4 TRS 2-amino-2-hydroxymethyl-propane-1,3-diol 0.700