Description

Castor Oil, Me Ester is a methyl ester derivative of castor oil, a versatile oleochemical with unique properties derived from its high ricinoleic acid content. This compound is valued for its excellent solvency, lubricity, and ability to act as a reactive intermediate or plasticizer. It serves as a critical raw material for manufacturers in the polymer, lubricant, and personal care industries seeking sustainable, bio-based alternatives to petroleum-derived chemicals.

Application

• Polymer & Resin Modification: Used as a reactive diluent and plasticizer in polyurethane, alkyd, and epoxy resin formulations to enhance flexibility and reduce viscosity.
• Lubricants & Greases: Functions as a high-performance base oil or additive in bio-lubricants, offering excellent low-temperature properties and biodegradability.
• Personal Care & Cosmetics: Employed as an emollient and conditioning agent in creams, lotions, and hair care products for its skin-friendly and moisturizing characteristics.
• Chemical Intermediate: Serves as a key starting material for synthesizing surfactants, esters, and other specialty chemicals.
• Coatings & Inks: Acts as a coalescing agent and plasticizer in coating systems to improve film formation, adhesion, and durability.

Basic Information

Product Name	Castor Oil, Me Ester
CAS No.	68201-34-3
Molecular Formula	Typically C19H36O3 (for methyl ricinoleate, main component)
Molecular Weight	~312.5 g/mol (for methyl ricinoleate)
Synonyms	Methyl Ricinoleate; Methyl Ester of Castor Oil; Ricinoleic Acid Methyl Ester; Castor Oil Methyl Ester; Fatty Acids, Castor-Oil, Methyl Esters; Methyl 12-Hydroxy-9-octadecenoate; 9-Octadecenoic Acid, 12-Hydroxy-, Methyl Ester, (9Z,12R)-; COME
EINECS	269-237-1

Quality Control

Our Castor Oil, Me Ester is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure consistency and meets specifications for key parameters such as ester content, acid value, hydroxyl value, and moisture. A Certificate of Analysis (COA) documenting these results is provided with every shipment to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C/59-77°F). This product is easily oxidized; for long-term storage, consider maintaining under an inert atmosphere (e.g., nitrogen) to preserve quality. Keep away from strong oxidizing agents and heat sources.

Specification

Item	Specification
Appearance	Clear, pale yellow to yellow liquid
Identification (IR)	Complies
Assay (GC)	Min. 95% (as Methyl Ricinoleate)
Acid Value	≤ 2.0 mg KOH/g
Hydroxyl Value	150 - 170 mg KOH/g
Iodine Value	80 - 90 g I2/100g
Saponification Value	175 - 190 mg KOH/g
Moisture (KF)	≤ 0.1 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.