Description

8-Methylstearic Acid Methyl Ester is a branched-chain fatty acid ester with a specific 8-methyl substitution on the stearic acid backbone. This structural feature imparts unique physical and chemical properties, such as modified melting behavior and enhanced solubility in organic matrices, making it a valuable intermediate for specialized synthesis. It is primarily sought after by R&D chemists and process engineers in the fine chemical, lubricant additive, and advanced material sectors for developing novel compounds with tailored performance characteristics.

Application

• Fine Chemical Intermediate: A key building block for the synthesis of complex organic molecules, including pharmaceuticals, agrochemicals, and specialty surfactants.
• Lubricant & Fuel Additive Precursor: Used to create esters that improve the low-temperature fluidity and viscosity index of synthetic lubricants and biofuels.
• Polymer Modification: Serves as a comonomer or plasticizer precursor to alter the flexibility, hydrophobicity, and processing characteristics of polymers.
• Cosmetic & Personal Care Ingredients: Employed in the production of emollients and texture-enhancing agents for creams and lotions.
• Research & Development: A valuable reference standard and reagent in academic and industrial laboratories studying lipid chemistry and esterification processes.
• Surface Coatings: Acts as a modifier in resin formulations to enhance film formation, adhesion, and weathering resistance.

Basic Information

Product Name	8-Methylstearic Acid Methyl Ester
CAS No.	2490-20-2
Molecular Formula	C20H40O2
Molecular Weight	312.53 g/mol
Synonyms	Methyl 8-Methyloctadecanoate; Methyl 8-Methylstearate; 8-Methyloctadecanoic Acid Methyl Ester; Octadecanoic Acid, 8-Methyl-, Methyl Ester; Iso-C19 Methyl Ester; Branched C19 Methyl Ester
EINECS	219-664-2

Quality Control

Every batch of 8-Methylstearic Acid Methyl Ester is produced and tested under a stringent quality management system. We ensure compliance with relevant industry standards through rigorous analytical protocols, including chromatography and spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to guarantee traceability and consistency for your critical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and heat sources.

Specification

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

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