Polyoxyethylene(4) lauryl ether
CAS 5274-68-0
EC 226-097-1
Formula C20H42O5
MW 362.54 g/mol
Surfactants Personal Care & CosmeticsPharmaceuticals & HealthcareTextile, Leather & Paper Cleaning & DegreasingEmulsification & DispersionRheology ModificationSolvent & Carrier
Description
Polyoxyethylene(4) lauryl ether, also known as C12E4, BRIJ 30, or dodecyltetraglycol, is a nonionic ethoxylated fatty alcohol surfactant with CAS number 5274-68-0. It carries no E-code designation and is identified under EC number 226-097-1 with the molecular formula C20H42O5.
In pharmaceutical topical formulations, C12E4 stabilises oil-in-water emulsions by reducing interfacial tension between immiscible phases, enabling uniform drug distribution across the cream or lotion matrix. In textile processing, it functions as a scouring and emulsifying agent, solubilising oils and waxes from fibre surfaces to prepare substrates for dyeing. It also serves as a carrier solvent in personal care concentrate systems.
This material is supplied in compliance with REACH regulations and is available in technical and cosmetic grades. Standard packaging includes drums and IBCs for bulk procurement. Buyers should confirm grade-specific documentation, including safety data sheets and certificates of analysis, prior to formulation use.
In pharmaceutical topical formulations, C12E4 stabilises oil-in-water emulsions by reducing interfacial tension between immiscible phases, enabling uniform drug distribution across the cream or lotion matrix. In textile processing, it functions as a scouring and emulsifying agent, solubilising oils and waxes from fibre surfaces to prepare substrates for dyeing. It also serves as a carrier solvent in personal care concentrate systems.
This material is supplied in compliance with REACH regulations and is available in technical and cosmetic grades. Standard packaging includes drums and IBCs for bulk procurement. Buyers should confirm grade-specific documentation, including safety data sheets and certificates of analysis, prior to formulation use.
Physical Properties
| Melting Point | 18.6-19.0 °C |
| Boiling Point | 180-185 °C @ Press: 1 Torr |
| Density | 0.952 g/cm³ @ Temp: 20 °C |
| Flash Point | >230 °F |
| Appearance | white solid or colourless liquid |
| Color | Colorless to light yellow |
| Odor | at 100.00?%. mild alcoholic |
| Form | Liquid |
| Refractive Index | n 20/D 1.453 |
| Log P | 4.204 (est) |
Safety & Handling (Learn More)
Danger GHS07 GHS09 GHS05
H
H302H315H318H319H335H400H410
P
P261P264P270P271P273P280P317P319P321P330P391P405P501P264+P265P301+P317P302+P352P304+P340P332+P317P337+P317P362+P364P403+P233P305+P351+P338P305+P354+P338
Trade & Regulatory
| HS Code | 34029000 |
| UN Number | 3082 |
| ADR Class | 9 |
| Packing Group | III |
| Storage Class | 10 - Combustible liquids |
| WGK (Germany) | 2 |
Other Names
2-[2-[2-(2-dodecoxyethoxy)ethoxy]ethoxy]ethanolC12E4BRIJ 30BRIJ(R) 30BRIJ(TM) 30DODECYLTETRAGLYCOLPOLYOXYETHYLENE 4 LAURYL ETHER3,6,9,12-Tetraoxatetracosan-1-olTetra(oxyethylene) dodecyl ether
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