Polyethylene glycol monostearate
CAS 9004-99-3
EC 618-405-1
Formula (C2H4O)nC18H36O2
MW 622.91 g/mol
Surfactants Personal Care & CosmeticsFood & NutritionPharmaceuticals & HealthcareTextile, Leather & Paper Emulsification & DispersionRheology ModificationSolvent & Carrier
Description
Polyethylene glycol monostearate (CAS 9004-99-3), also known by trade designations S541, S1004, S1012, S1054, and S1116, is a nonionic surfactant produced by esterifying stearic acid with polyethylene glycol. It carries no assigned E-code and is classified under HS code 3907200000.
In cosmetic formulations, it functions as an oil-in-water emulsifier, stabilising creams and lotions by reducing interfacial tension between aqueous and lipid phases. In pharmaceutical manufacturing, it serves as a carrier and solubiliser for active ingredients in topical and oral dosage forms. The textile industry uses it as a fibre lubricant and antistatic agent during processing.
The material is available in grades compliant with Ph.Eur. and FCC monographs, supporting pharmaceutical and food-contact applications respectively. It falls under REACH regulation and is supplied as powder or lump solid. Standard packaging formats include fibre drums and multiwall bags.
In cosmetic formulations, it functions as an oil-in-water emulsifier, stabilising creams and lotions by reducing interfacial tension between aqueous and lipid phases. In pharmaceutical manufacturing, it serves as a carrier and solubiliser for active ingredients in topical and oral dosage forms. The textile industry uses it as a fibre lubricant and antistatic agent during processing.
The material is available in grades compliant with Ph.Eur. and FCC monographs, supporting pharmaceutical and food-contact applications respectively. It falls under REACH regulation and is supplied as powder or lump solid. Standard packaging formats include fibre drums and multiwall bags.
Physical Properties
| Melting Point | 33-37 °C |
| Flash Point | 39 °C |
| Appearance | Solid |
| Color | White to Almost white |
| Odor | at 100.00?%. mild fatty |
| Form | powder to lump |
| Water Solubility | Soluble in water |
| Log P | 7.629 (est) |
Safety & Handling (Learn More)
Warning GHS07
H
H315H319H335
P
P261P264P271P280P319P321P405P501P264+P265P302+P352P304+P340P332+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 3907200000 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 1 |
Other Names
Polyoxyl 40 stearatePolyoxyethylene (40) stearate2-hydroxyethyl octadecanoatePEG-40 stearatepolyoxyl (40) stearatepolyoxyethylene stearatess541s1054
Related Products
Raw Materials
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