Potassium Toluenesulfonate

AKA “16106-44-8, Potassium p-toluenesulfonate, potassium 4-methylbenzenesulfonate, potassium tosylate, Benzenesulfonic acid, 4-methyl-, potassium salt, UNII-AX518O2S47, AX518O2S47, ELTESOL PT40, EINECS 240-273-5”

Surfactant

Ingredient Facts

Potassium toluenesulfonate

AKA: 16106-44-8, Potassium p-toluenesulfonate, Potassium 4-methylbenzenesulfonate, Potassium tosylate, Benzenesulfonic acid, 4-methyl-, Potassium salt, UNII-AX518O2S47, AX518O2S47, ELTESOL PT40, EINECS 240-273-5

Surfactant · Cleansing · EWG: 4

Synthetic

Cleanser

Not Clean

Potassium toluene-4-sulphonate

Formula

C7H7KO3S

Mol. Weight

210.29

CAS #

16106-44-8

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.

Hydrotrope

Cleansing Surfactant

Surfactant Hydrotrope

Lifts away dirt and oil

Improves ingredient solubility

Traditional Use

A synthetic surfactant and cleanser developed in the early-to-mid 20th century as part of modern petrochemical cosmetic chemistry. No traditional use exists; it was engineered to provide specific cleansing and solubilizing properties in formulations.