Synonym(s)
CAS number: 9003-13-8; Polyoxypropylene (16) butyl ether
DefinitionThis section has been translated automatically.
PPG is the acronym for "polypropylene glycol", the polymer of propylene glycol (1,2-propanediol), a dihydric alcohol. The number after "PPG" indicates the average number of propylene glycol molecular units, e.g. "PPG-2" has 2 propylene glycol molecular units. "Butyl" generally designates butanol (1-butanol or n-butanol) as the alcoholic component, "ether" the linking product of 2 alcohol molecules via an oxygen bridge. PPG-2-butyl ether is used in cosmetic formulations; the substance acts as an emollient (makes the skin smooth and supple).
Prof. Dr. med. Peter Altmeyer