Buteth-3

AKA: TRIETHYLENE GLYCOL MONOBUTYL ETHER, 143-22-6, Butoxytriglycol, 2-[2-(2-Butoxyethoxy)ethoxy]ethanol, Butyltriglycol, Ethanol, 2-(2-(2-Butoxyethoxy)ethoxy)ethanol, HSDB 5645
Synthetic
Solvent
Not Clean
OriginDerived from ethylene oxide and butanol, both petrochemical-based compounds from crude oil refining. Synthesized through ethoxylation, where ethylene oxide is chemically bonded to butanol in a catalytic reaction.
Poly(oxy-1,2-ethanediyl), .alpha.-butyl-.omega.-hydroxy- (3 mol EO average molar ratio)
Solubility Very soluble in ethanol, methanol
Formula
C10H22O4
Mol. Weight
206.28
CAS #
143-22-6
Form
Liquid
State
Liquid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Solvent
Dissolves other ingredients so they distribute evenly in the formula. Often the invisible "base" everything else is mixed into.
Dissolves Ingredients
Dissolves other ingredients
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed0 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
Concentration Guide
Leave-on0.0005–0.33%
Rinse-off0.00043–0.33%
0%50%100%
CIR reported use · 2015 survey
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR