Trideceth-20

Trideceth-20 molecular structure
molecular structure · PubChem
AKA: 2-(Tridecyloxy)ethanol, 38471-49-7, Ethanol, Tridecyl ethyleneglycol monoether, TRIDECETH-1, NOVEL TDA 1, ETHYLENE GLYCOL MONOTRIDECYL ETHER
Synthetic
Cleanser
Emulsifier
Not Clean
OriginDerived from tridecyl alcohol and ethylene oxide, both petroleum-derived chemical compounds. Synthesized through ethoxylation, wherein ethylene oxide is added to tridecyl alcohol under catalytic conditions.
Poly(oxy-1,2-ethanediyl), .alpha.-tridecyl-.omega.-hydroxy- (20 mol EO average molar ratio)
Formula
C15H32O2
Mol. Weight
244.41
CAS #
24938-91-8
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.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Removes Impurities
Emulsifier
Removes dirt and impurities
Mixes oil and water
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2012
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR