Isohexyl Neopentanoate
AKA “2-Ethylbutyl 2, 2-dimethylpropanoate, 131141-70-3, Propanoic acid, 2, 2-dimethyl-, 2-ethylbutyl ester, 2-Ethylbutyl pivalate, SCHEMBL13686673, DTXSID00338052
Emollient
Ingredient Facts
Isohexyl neopentanoate
AKA: 2-Ethylbutyl 2, 2-dimethylpropanoate, 131141-70-3, Propanoic acid, 2, 2-dimethyl-, 2-ethylbutyl ester, 2-Ethylbutyl pivalate, SCHEMBL13686673, DTXSID00338052
Emollient · Emollient · EWG: 3
Synthetic
Emollient
Skin Conditioner
Not Clean
Propanoic acid, 2,2-dimethyl, 2-ethylbutyl ester
Formula
C11H22O2
Mol. Weight
186.29
CAS #
131141-70-3
Form
Oil
See origin →
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 developed as a lightweight cosmetic emollient. Created in the 20th century to provide skin-conditioning properties without a traditional historical use.
Skin Types
all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
EWG
3
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR