Description

10-Methyloctadecanoic Acid Ethyl Ester is a high-purity branched-chain fatty acid ester, valued for its role as a versatile synthetic intermediate and a model compound in lipid research. Its defined structure makes it a critical building block for the synthesis of specialized surfactants, lubricant additives, and advanced organic materials. This product is essential for R&D laboratories and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors seeking consistent, high-quality intermediates.

Application

• Synthetic Intermediate: A key precursor in the synthesis of complex lipids, bioactive molecules, and specialty surfactants.
• Pharmaceutical Research: Used as a reference standard and building block in drug discovery and metabolic studies.
• Lubricant & Fuel Additive Development: Serves as a model compound for researching the effects of branched-chain esters on viscosity and low-temperature performance.
• Agrochemical Formulations: Employed in the development of emulsifiers and adjuvants for crop protection products.
• Cosmetic & Personal Care Ingredients: Investigated for use in emollients and texture-enhancing agents.
• Academic & Industrial R&D: A valuable tool for studying ester chemistry, reaction mechanisms, and material properties.

Basic Information

Product Name	10-Methyloctadecanoic Acid Ethyl Ester
CAS No.	55334-35-5
Molecular Formula	C₂₁H₄₂O₂
Molecular Weight	326.56 g/mol
Synonyms	Ethyl 10-Methyloctadecanoate; Ethyl 10-Methylstearate; 10-Methylstearic Acid Ethyl Ester; Ethyl Isostearate (isomeric mixture); Octadecanoic acid, 10-methyl-, ethyl ester; Isooctadecanoic Acid Ethyl Ester; C21-Ethyl Ester (branched)
EINECS	Contact for details

Quality Control

Our 10-Methyloctadecanoic Acid Ethyl Ester is manufactured 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. We provide full traceability and Certificates of Analysis (COA) are available for all shipments to support your quality assurance and regulatory compliance needs.

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)	≤ 0.5%

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