What is Propylene Glycol?

Propylene glycol is a colourless organic liquid. The chemical name is "Propane-1,2-diol" with formula C3H802. The CAS registry number is 57-55-6. Typical names are propylene glycol (PG) and monopropylene glycol (MPG). The propylene glycol can be manufactured in different grades. The most controlled grade is called propylene glycol-USP/EP and is manufactured and distributed according to high industry standards. The normal PG grade is called industrial grade. Both grades may be marketed under different trade names.

A web search for propylene glycol can be performed in several other languages :

French : Propylène glycol
German : Propylenglykol
Dutch: Propyleenglycol
Portuguese : Propilenoglicol
Spanish: Propilenglicol o glicoles propilénicos
Italian: Glicole propilenico
Bulgarian: Пропиленгликола
Russian: Пропиленглико́ль