Nonoxynol-100

AKA: 4-Methoxypicolinamide, 90151-10-3, 4-methoxypyridine-2-carboxamide, 4-Methoxy-pyridine-2-carboxylic acid amide, 9014-93-1, 4-Methoxypyridine-2-carboxylic acid amide, 2-Pyridinecarboxamide
Synthetic
Cleanser
Not Clean
Poly(oxy-1,2-ethanediyl), .alpha.-(dinonylphenyl)-.omega.-hydroxy- (100 mol EO average molar ratio)
Formula
C7H8N2O2
Mol. Weight
152.15
CAS #
9014-93-1
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.
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 with high polyethylene glycol content developed in the mid-20th century. Used in cosmetics for solubilization and emulsification of challenging ingredients.
EWG
3
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
medical-approval
all-shades-safe
Moderate Irritant
Regulatory Status
USApermitted
CANADApermitted
Regulatory Agencies
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