Trideceth-2

AKA: Ethanol, DIETHYLENE GLYCOL MONOTRIDECYL ETHER, MARLIPAL O 13/20, NOVEL TDA-2 ETHOXYLATE, ALFONIC TDA-2 ETHOXYLATE

Synthetic

Cleanser

Emulsifier

Clean

OriginDerived from tridecyl alcohol and ethylene oxide, members of the polyethylene glycol ether surfactant family. Synthesized through ethoxylation, where ethylene oxide is chemically bonded to tridecyl alcohol.

Poly(oxy-1,2-ethanediyl), .alpha.-tridecyl-.omega.-hydroxy- (2 mol EO average molar ratio); Isotridecanol, ethoxylated

Formula

C17H36O3

Mol. Weight

288.50

CAS #

24938-91-8, 69011-36-5

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

Functions

Emulsifying

Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.

Emulsifier

Mixes Oil & Water

The paper trail

🔬Peer-reviewed1 paper →

⚖️Regulatory1 listing →

🛡️Safety-assessed2 reviews →

Counts, not a verdict. A listing isn't a study. The trail, you decide.

EWG

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

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Verified Jun 2026

Data: PubChem · CosIng · EWG · CIR