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Nonoxynol-2
AKA “20427-84-3, 4-Nonylphenol diethoxylate, U4A966MO25, DTXSID9058600, RefChem:1071320, DTXCID0016588, 243-816-4, 2-[2-(4-Nonylphenoxy)ethoxy]ethanol, 9016-45-9”
Surfactant
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Ingredient Facts
Nonoxynol-2
AKA: 20427-84-3, 4-Nonylphenol diethoxylate, U4A966MO25, DTXSID9058600, RefChem:1071320, DTXCID0016588, 243-816-4, 2-[2-(4-Nonylphenoxy)ethoxy]ethanol, 9016-45-9
Surfactant · Cleansing · EWG: 4
Synthetic
Cleanser
Not Clean
Poly(oxy-1,2-ethanediyl), .alpha.-(dinonylphenyl)-.omega.-hydroxy-, phosphates (24 mol EO average molar ratio)
Solubility >1000 mg/l
Formula
C19H32O3
Mol. Weight
308.50
CAS #
39464-64-7
Form
Liquid
State
Liquid; Dry Powder
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.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Removes Impurities
Cleansing Surfactant
Traditional Use
A synthetic non-ionic surfactant developed in the mid-20th century. Used in cosmetics as an emulsifier and solubilizer.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
EWG
4
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
medical-approval
all-shades-safe
Moderate Irritant
Regulatory Status
USA✔ permitted
CANADA✔ permitted
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR