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
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
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
Traditional Use
A synthetic emulsifier and surfactant derived from petrochemicals, developed in the mid-20th century for use in cosmetic and personal care formulations. No traditional use history.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR