Description

9-Methylstearic Acid Methyl Ester is a branched-chain fatty acid methyl ester (FAME) derivative, offering unique physical and chemical properties compared to its linear counterparts. This compound is valued for its role as a versatile intermediate and performance additive in advanced material synthesis. It is particularly relevant for industries focused on lubricants, polymer plasticizers, and specialty chemical manufacturing where molecular structure dictates performance.

Application

• Lubricant & Grease Formulation: Acts as a synthetic base oil or additive to enhance low-temperature fluidity, oxidative stability, and lubricity.
• Polymer Industry: Serves as a monomer or plasticizer intermediate for producing specialized polyesters and other polymers with modified flexibility and thermal properties.
• Surfactant & Detergent Synthesis: Used as a hydrophobic building block for creating novel surfactants with tailored branching for improved solubility and surface activity.
• Cosmetic & Personal Care: Functions as an emollient and texture enhancer in high-end cosmetic formulations, providing a non-greasy feel.
• Fuel & Biofuel Research: Investigated as a component or model compound in biodiesel research to study the effects of branched structures on cold flow properties.
• Chemical Synthesis: A key intermediate for organic synthesis, including the production of pharmaceuticals, agrochemicals, and other fine chemicals requiring a branched alkyl chain.

Basic Information

Product Name	9-Methylstearic Acid Methyl Ester
CAS No.	14066-50-3
Molecular Formula	C20H40O2
Molecular Weight	312.53 g/mol
Synonyms	Methyl 9-Methyloctadecanoate; Methyl 9-Methylstearate; 9-Methyloctadecanoic Acid Methyl Ester; Iso-Nonadecanoic Acid Methyl Ester; 10-Methyloctadecanoic Acid Methyl Ester (alternative numbering); Anteiso-C19:0 Methyl Ester; Methyl iso-Nonadecanoate; Fatty Acid Methyl Ester (C19, branched)
EINECS	Contact for details

Quality Control

Our 9-Methylstearic Acid Methyl Ester is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including chromatography (GC/HPLC) and spectroscopic methods, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are provided and can be tailored to meet specific customer or regulatory 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). Keep away from strong oxidizing agents, strong acids, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Acid Value	≤ 1.0 mg KOH/g
Water Content (KF)	≤ 0.1%

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