2,2-dimethylpropane-1,3-diyl dipropionate 2,2-Dimethyl-1,3-propanediol dipropionate 1,3-Propanediol, 2,2-dimethyl-, 1,3-dipropanoate 1,3-Propanediol, 2,2-dimethyl-, dipropanoate 2,2-Dimethyl-1,3-dipropionoxypropane Einecs 223-057-5