Diethylhexyl Fumarate

AKA: Bis(2-ethylhexyl) fumarate, 141-02-6, Di(2-ethylhexyl) fumarate, 2-Ethylhexyl fumarate, RC Comonomer DOF, 2-Butenedioic acid, Bis(2-ethylhexyl) ester, FUMARIC ACID, BIS(2-ETHYLHEXYL) ESTER, 1, 4-bis(2-ethylhexyl) ester
Synthetic
Emollient
Skin Conditioner
Clean
2-Butenedioic Acid, Bis(2-Ethylhexyl) Ester
Formula
C20H36O4
Mol. Weight
340.50
CAS #
141-02-6, 128111-61-5
Form
Liquid
State
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
Contemporary synthetic ester used in cosmetics as an emollient and skin-conditioning agent. Created to provide improved texture and moisture benefits in skincare formulations.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Non-Comedogenic
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing
🛡️Safety-assessed2 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR