murphyCeteth-25
molecular structure · PubChem
AKA: 9004-95-9, Cetocire, CETOMACROGOL, Romopal O, Collone AC, Lubrol W, Nikkol BC, Ethosperse CL20, Lipocol C2, Ceteth 2
Synthetic
Cleanser
Emulsifier
Not Clean
OriginDerived from coconut or palm-based fatty alcohols, typically cetyl alcohol or similar C16-C18 alcohols. Synthesized through ethoxylation, where ethylene oxide is added to the fatty alcohol base to create polyethylene glycol chains.
Poly(oxy-1,2-ethanediyl), .alpha.-hexadecyl-.omega.-hydroxy- (25 mol EO average molar ratio)
Formula
C56H114O21
Mol. Weight
1123.50
CAS #
9004-95-9
Form
Liquid
State
White solid; mp = 32-34 deg C; [Sigma-Aldrich MSDS]
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Removes Impurities
Cleansing Surfactant
Emulsifier
Mixes Oil & Water
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Restricted By
Concentration Guide
Leave-on0.6–3%
Rinse-off1–2%
0%50%100%
CIR reported use · 2010 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR