Description

5,8-Octadecadiynoic Acid Methyl Ester is a high-purity, long-chain fatty acid derivative characterized by its conjugated diyne structure. This unique molecular architecture makes it a valuable synthetic intermediate and research chemical for advanced material science and organic synthesis. It is primarily sought by R&D laboratories and industrial chemists working in the development of specialty polymers, liquid crystals, and novel bioactive compounds.

Application

• Synthetic Intermediate for the preparation of complex lipids and fatty acid derivatives.
• Polymer Science Research, particularly in the synthesis of monomers for conjugated polymers with specific optical or electronic properties.
• Liquid Crystal Development as a potential building block for mesogenic compounds.
• Pharmaceutical & Bioactive Molecule Research for creating novel compounds with targeted biological activity.
• Material Science applications, including surface modification and the creation of self-assembled monolayers (SAMs).
• Academic & Industrial R&D as a reference standard or starting material for chemical exploration.

Basic Information

Product Name	5,8-Octadecadiynoic Acid Methyl Ester
CAS No.	18202-21-6
Molecular Formula	C₁₉H₃₀O₂
Molecular Weight	290.44 g/mol
Synonyms	Methyl 5,8-Octadecadiynoate; Methyl octadeca-5,8-diynoate; 5,8-Octadecadiynoic acid methyl ester; Octadeca-5,8-diynoic acid methyl ester; Methyl ester of 5,8-octadecadiynoic acid; C18:2(5,8) diyne methyl ester; Fatty acid methyl ester (C18, 5,8-diyne)
EINECS	Contact for details

Quality Control

Our 5,8-Octadecadiynoic Acid Methyl Ester is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chromatographic purity analysis and structural confirmation, to ensure it meets the high standards required for research and industrial synthesis. A Certificate of Analysis (COA) detailing specific results is provided with every shipment to guarantee traceability and consistency.

Storage

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

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95% (Typical 97-99%)
Water Content (KF)	≤ 0.5%

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