Sodium Tridecylbenzenesulfonate
AKA “Sodium 2-tridecylbenzenesulfonate, UNII-781Q09CX7V, 781Q09CX7V, Benzenesulfonic acid, 2-tridecyl-, sodium salt (1:1), 925392-78-5, RefChem:203038, 26248-24-8, tridecyl-, SCHEMBL99281, SCHEMBL31034492
Surfactant
Ingredient Facts
Sodium tridecylbenzenesulfonate
AKA: Sodium 2-tridecylbenzenesulfonate, UNII-781Q09CX7V, 781Q09CX7V, Benzenesulfonic acid, 2-tridecyl-, Sodium salt (1:1), 925392-78-5, RefChem:203038, 26248-24-8, Tridecyl-, SCHEMBL99281, SCHEMBL31034492
Surfactant · Cleansing · EWG: 4
Synthetic
Cleanser
Medicated Active
Not Clean
Sodium tridecylbenzenesulphonate
Formula
C19H31NaO3S
Mol. Weight
362.50
CAS #
26248-24-8
Form
Liquid
See origin →
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.
Surfactant Cleansing
Anti-Inflammatory
Antimicrobial
Fights Acne
Removes dirt and impurities
Creates cleansing foam
Lifts away dirt and oil
Traditional Use
A synthetic surfactant developed in the mid-20th century for use in personal care and household cleaning products. Created as part of modern synthetic surfactant chemistry with no traditional predecessor.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR