Propylene Glycol

**Semantic type:** Biomedical or Dental Material|Organic Chemical|Pharmacologic Substance

**Definition:** A propanediol that exists as a clear, colorless and hygroscopic liquid and consists of propane where the hydrogens at positions 1 and 2 are substituted by hydroxyl groups. Propylene glycol is used as an organic solvent and diluent in pharmaceuticals and many other industrial applications.

**Synonyms:** - 1,2-Dihydroxypropane - 1,2-Propanediol - 2-Hydroxypropanol - Isopropylene Glycol - MEG - Methyl Ethyl Glycol - Methyl Glycol - Methylethylene Glycol - Monopropylene Glycol - PG - PROPYLENE GLYCOL - Propane-1,2-Diol - alpha-Propylene Glycol - alpha-Propyleneglycol