Methyl Ricinoleate
AKA “141-24-2, Flexricin P-1, RICINOLEIC ACID, METHYL ESTER, 90FDR3O96Y, DTXSID2029169, DUB RM, NSC-1254, 9-Octadecenoic acid, 12-hydroxy-, methyl ester, (9Z, 12R)-, DTXCID509169”
Emollient
Ingredient Facts
Methyl ricinoleate
AKA: 141-24-2, Flexricin P-1, RICINOLEIC ACID, METHYL ESTER, 90FDR3O96Y, DTXSID2029169, DUB RM, NSC-1254, 9-Octadecenoic acid, 12-hydroxy-, Methyl ester, (9Z, 12R)-, DTXCID509169
Emollient · Emollient · EWG: 4
Synthetic
Emollient
Skin Conditioner
Plant Oil
Not Clean
Ricinoleic Acid methyl ester is an aliphatic alcohol.
Solubility Soluble in alcohol, ether
Formula
C19H36O3
Mol. Weight
312.50
CAS #
141-24-2
Form
Liquid
State
Liquid
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
A synthetic ester derived from castor oil developed in the early 20th century as a replacement for natural ricinoleic acid. Used in modern cosmetics as an emollient and skin-conditioning agent.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
RIFM fragrance ingredient safety assessment, pentanedioic acid, 1,5-dimethyl ester, CAS Registry Number 1119-40-0.
Api AM, Belsito D, Botelho D, Browne D, Bruze M et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 2018
Final Report on the Safety Assessment of Ricinus Communis (Castor) Seed Oil, Hydrogenated Castor Oil, Glyceryl Ricinoleate, Glyceryl Ricinoleate SE, Ricinoleic Acid, Potassium Ricinoleate, Sodium Rici
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Methyl Ricinoleate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Ricinoleic Acid
European Commission
EU Cosmetic Ingredient Database (CosIng)
Ricinoleic Acid
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Synthesis of mixed esters of ascorbic acid using methyl esters of palm and soybean oils.
Hsieh HJ, Chen JW, Giridhar R, Wu WT
Preparative biochemistry & biotechnology, 2005
Differentiation of Malassezia species: selectivity of cremophor EL, castor oil and ricinoleic acid for M. furfur.
Mayser P, Haze P, Papavassilis C, Pickel M, Gruender K et al.
The British journal of dermatology, 1997
Differentiation of Malassezia species: selectivity of cremophor EL, castor oil and ricinoleic acid for M. furfur.
Mayser P, Haze P, Papavassilis C, Pickel M, Gruender K et al.
The British journal of dermatology, 1997
Differentiation of Malassezia species: selectivity of cremophor EL, castor oil and ricinoleic acid for M. furfur.
Mayser P, Haze P, Papavassilis C, Pickel M, Gruender K et al.
The British journal of dermatology, 1997
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR