Octaethylene glycol

Octaethylene glycol (CAS 5117-19-1) is a discrete polyethylene glycol oligomer composed of eight ethylene oxide units, also referred to as HO-8-OH, HO-PEG(8)-OH, PEG-8, or Octoethyleneglycol. It carries no E-code designation and is classified under the Alcohols and Glycols category with HS code 2909498090.

In personal care formulations, it functions as a humectant by binding water within the skin matrix and as a carrier solvent that improves the solubility and delivery of active ingredients. In metalworking fluids and lubricant blends, its hydroxyl-terminated structure provides film-forming lubricity and aids in dispersing additives uniformly across metal surfaces.

Octaethylene glycol is available in pharmaceutical and technical grades, supplied in forms ranging from powder to clear liquid depending on ambient temperature. It falls within the scope of REACH regulation and can be sourced to Ph.Eur. or FCC standards upon request. Packaging formats are confirmed at the point of order.