.alpha.-Propylene glycol 1,2-Dihydroxypropane 1,2-Propanediol 1,2-Propylene glycol 2,3-Propanediol 2-Hydroxypropanol 57-55-6 Methyl glycol Methylethyl glycol Methylethylene glycol Monopropylene glycol NSC69860 PG 12 Propane-1,2-diol Propylene glycol Sirlene Trimethyl glycol WLN: QY1&1Q