Sodium Trideceth Sulfate
molecular structure · PubChem
AKA: Ethanol, Hydrogen sulfate, Sodium salt, 25446-78-0, Sodium trideceth-3 sulfate, Sodium;2-[2-(2-tridecoxyethoxy)ethoxy]ethyl sulfate, Sodium 2-[2-[2-(tridecyloxy)ethoxy]ethoxy]ethyl sulphate
Synthetic
Cleanser
Emulsifier
Medicated Active
Clean
Poly(oxy-1,2-ethanediyl), .alpha.-sulfo-.omega.-(tridecyloxy)-, sodium salt (1-4 mol EO average molar ratio)
Formula
C19H39NaO7S
Mol. Weight
434.60
CAS #
25446-78-0
Form
Liquid
State
Liquid
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Foaming
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Surfactant Cleansing
Surfactant Emulsifying
Anti-Inflammatory
Antimicrobial
Fights Acne
Removes dirt and impurities
Creates cleansing foam
Lifts away dirt and oil
Mixes oil and water
Traditional Use
A modern synthetic surfactant developed in the mid-20th century for use in cleansing products. Created as part of the broader development of anionic sulfate surfactants to replace or enhance traditional soap-based cleansers.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR