Description

7-Octadecynoic Acid Methyl Ester is a high-purity, long-chain fatty acid derivative featuring a terminal alkyne functional group. This unique structure makes it a valuable chemical intermediate and building block for advanced organic synthesis and materials science. It is primarily utilized by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries to develop novel compounds with tailored properties.

Application

• Pharmaceutical Intermediate: Serves as a key synthon for constructing complex molecules in drug discovery and development programs.
• Agrochemical Synthesis: Used in the research and production of advanced crop protection agents and plant growth regulators.
• Polymer & Material Science: Acts as a monomer or cross-linking agent for creating specialty polymers, coatings, and advanced materials with specific functionalities.
• Organic Synthesis Building Block: The terminal alkyne group enables click chemistry reactions (e.g., Huisgen cycloaddition) for efficient molecular assembly.
• Lubricant & Fuel Additive Research: Investigated as a precursor for synthesizing novel bio-based or high-performance lubricant additives.
• Surface Chemistry & Self-Assembled Monolayers (SAMs): Used in research for modifying surface properties on various substrates.

Basic Information

Product Name	7-Octadecynoic Acid Methyl Ester
CAS No.	18545-06-7
Molecular Formula	C₁₉H₃₄O₂
Molecular Weight	294.48 g/mol
Synonyms	Methyl 7-Octadecynoate; Methyl octadec-7-ynoate; 7-Octadecynoic acid methyl ester; Methyl ester of 7-octadecynoic acid; Stearolic acid methyl ester (related); C18:1-7yne methyl ester
EINECS	Contact for details

Quality Control

Our 7-Octadecynoic Acid Methyl Ester is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specifications such as assay (by GC or HPLC), identity (by IR, NMR), and impurity profiles are provided and 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 at room temperature (typically 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/HPLC)	≥ 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.