1,3-Diethoxy-2-propanol 1,3-Glycerine diethyl ether 2-Propanol, 1,3-diethoxy- 4043-59-8 Diethylin Glycerol .alpha.,.gamma.-diethyl ether Glycerol 1,3-bis(ethyl ether) Glycerol 1,3-diethyl ether NSC403841