murphyEthyl Ricinoleate
AKA: 55066-53-0, Ricinoleic acid, Ethyl ester, 9-Octadecenoic acid, RICINOLEATE D'ETHYLE, (+)-ETHYL RICINOLEATE
Synthetic
Fragrance
Skin Conditioner
Not Clean
OriginCastor bean (Ricinus communis, Euphorbiaceae family) is native to East Africa and tropical regions worldwide. Ethyl ricinoleate is synthesized through esterification of ricinoleic acid with ethanol under catalytic conditions.
12-Hydroxy-9-Octadecenoic Acid, Ethyl Ester; Ethyl (R)-12-hydroxyoleate
Formula
C20H38O3
Mol. Weight
326.50
CAS #
55066-53-0
Form
Liquid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Functions
Perfuming
Added for scent. Can be natural or synthetic. Common irritant and allergen — one of the top reasons people react to products.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Skin Irritant
2 studies / 2 not irritating (CIR 353)
Not a Sensitizer
1 study / 1 not sensitizing (CIR 353)
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2025
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR