2-(Hydroxymethyl)-2-(((1-oxooctadecyl)oxy)methyl)propane-1,3-diyl distearate 28188-24-1 EINECS 248-889-6 Octadecanoic acid, 2-(hydroxymethyl)-2-(((1-oxooctadecyl)oxy)methyl)-1,3-propanediyl ester Pentaerythritol tristearate Stearic acid, triester with pentaerythritol