Description

7-Methylstearic Acid Methyl Ester is a branched-chain fatty acid methyl ester (FAME) with the CAS registry number 55124-98-6. This specialty ester is valued for its role as a versatile chemical intermediate and a model compound in lipid research and synthesis. It is primarily sought by manufacturers and R&D laboratories in the pharmaceutical, cosmetic, and specialty chemical industries for developing novel formulations and advanced materials.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, particularly those requiring lipophilic side chains for enhanced bioavailability.
• Cosmetic & Personal Care Ingredient: Serves as an emollient, skin-conditioning agent, or a base material for synthesizing specialty esters in creams, lotions, and ointments.
• Lubricant & Plasticizer Precursor: Acts as a key intermediate in the production of synthetic lubricants, biodegradable greases, and polymer plasticizers.
• Research & Analytical Standard: Employed as a reference standard in gas chromatography (GC) and mass spectrometry (MS) for the analysis of branched-chain fatty acids and their derivatives.
• Surfactant & Detergent Synthesis: A building block for manufacturing specialized surfactants, emulsifiers, and cleaning agents.
• Biofuel & Renewable Chemical Research: Studied as a component or modifier in biodiesel formulations and other renewable fuel alternatives.

Basic Information

Product Name	7-Methylstearic Acid Methyl Ester
CAS No.	55124-98-6
Molecular Formula	C₂₀H₄₀O₂
Molecular Weight	312.53 g/mol
Synonyms	Methyl 7-Methyloctadecanoate; Methyl 7-Methylstearate; 7-Methyloctadecanoic Acid Methyl Ester; Iso-C19 Methyl Ester; Anteiso-C19 Methyl Ester; Methyl Anteisostearate; Methyl 7-Methyloctadecanoate; 7-Methylstearic Acid, Methyl Ester
EINECS	Contact for details

Quality Control

Our 7-Methylstearic Acid Methyl Ester is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and identity confirmation, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting purity, assay, and key physical parameters are available upon request 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). This material is easily oxidized; for long-term storage, it is recommended to keep it under an inert atmosphere (e.g., nitrogen or argon) to maintain stability and prevent degradation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 95.0%
Purity (GC Area %)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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