Butyloctyl Oleate

Butyloctyl Oleate molecular structure
molecular structure · PubChem
AKA: 2-Butyloctyl oleate, 134112-37-1, (Z)-9-octadecenoic acid, 2-butyloctyl ester, BUTYLOCTYL OLEATE [INCI], (+/-)-2-Butyloctyl oleate
Synthetic
Emollient
Skin Conditioner
Not Clean
(Z)-9-Octadecenoic acid, 2-butyloctyl ester
Formula
C30H58O2
Mol. Weight
450.80
CAS #
134112-37-1
Form
Liquid
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Locks In Moisture
Traditional Use
Synthetic ester derived from oleic acid (found in olive oil and other plant oils). Created to provide the conditioning benefits of traditional plant-based oils in a more stable, modern formulation.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR