Nonoxynol-8
molecular structure · PubChem
AKA: 41506-14-3, Octaethylene glycol mono(p-nonylphenyl) ether, Nonylbenzene-PEG8-OH, 23-(4-Nonylphenoxy)-3, 6, 9, 12, 15, 18, 21-heptaoxatricosan-1-ol, Rokafenol N-8, 27177-05-5, 23-(Nonylphenoxy)-3
Synthetic
Cleanser
Not Clean
Poly(oxy-1,2-ethanediyl), .alpha.-(dinonylphenyl)-.omega.-hydroxy-, phosphate, (8 mol EO average molar ratio)
Formula
C31H56O9
Mol. Weight
572.80
CAS #
39464-64-7
Form
Liquid
Functions
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
Synthetic nonionic surfactant developed in the mid-20th century. Used in cosmetics and personal care as an emulsifier and solubilizer.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory0 listings
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR