Description

Fatty Acids, C18-Unsatd., Dimers, Di-Me Esters CAS NO 68956-10-5 are a specialized class of dimerized fatty acid methyl esters, derived from unsaturated C18 fatty acids like oleic or linoleic acid. This product matters as a high-performance, low-viscosity chemical intermediate and functional fluid base, prized for its excellent solvency, thermal stability, and hydrophobic character. It is essential for manufacturers in the lubricants, polymers, and coatings industries seeking to enhance product performance and durability.

Application

• Lubricant & Functional Fluid Formulation: Acts as a base oil or additive in synthetic lubricants, metalworking fluids, and hydraulic fluids, offering good lubricity and oxidative stability.
• Polymer & Resin Modification: Used as a plasticizer, compatibilizer, or reactive diluent in alkyd resins, polyamides, and polyester systems to improve flexibility and processing.
• Coating & Ink Carrier: Serves as a high-boiling, low-odor solvent or carrier solvent in industrial coatings, printing inks, and adhesives.
• Chemical Intermediate: A key starting material for further synthesis, including hydrogenation to saturated dimer diols or reaction to form amides and other derivatives.
• Personal Care & Cosmetics: Employed as an emollient and skin-conditioning agent in cosmetic formulations.

Basic Information

Product Name	Fatty Acids, C18-Unsatd., Dimers, Di-Me Esters
CAS No.	68956-10-5
Molecular Formula	Typically C38H70O4 (for a C36 dimer core)
Molecular Weight	~590.97 g/mol
Synonyms	Dimer Acid Methyl Ester; Dimethyl Dimerate; Methyl Dimerate; Dimerized Fatty Acid Methyl Ester; Dimer Acid, Methyl Ester; C36 Dimer Acid Methyl Ester; Dimer Acid C36 Methyl Ester; Oleic Acid Dimer Methyl Ester
EINECS	273-277-8

Quality Control

Our Fatty Acids, C18-Unsatd., Dimers, Di-Me Esters are produced under a strict quality management system. Each batch is analyzed to ensure it meets precise specifications for composition, purity, and physical properties. Certificates of Analysis (COA) documenting key parameters such as dimer content, acid value, and color are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from strong alkalis and incompatible materials. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep container tightly sealed when not in use to minimize moisture absorption and oxidation.

Specification

Item	Specification
Appearance	Clear, pale yellow to amber viscous liquid
Identification (IR)	Conforms
Acid Value (mg KOH/g)	≤ 5.0
Saponification Value (mg KOH/g)	180 - 200
Iodine Value (Wijs)	80 - 110
Dimer Content (GC)	≥ 80%
Monomer Content (GC)	≤ 15%
Trimer & Higher (GC)	≤ 5%
Moisture (Karl Fischer)	≤ 0.1%
Color (Gardner)	≤ 5

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