Propanediol

Propanediol may refer to any of four isomeric organic chemical compounds:

Non-geminal diols (glycols)

 * 1,2-Propanediol, a.k.a. propylene glycol, a vicinal diol
 * 1,3-Propanediol, a.k.a. trimethylene glycol

Geminal diols

 * 1,1-Propanediol
 * 2,2-Propanediol