Description

11-Octadecynoic Acid Methyl Ester is a high-purity fatty acid methyl ester derivative featuring a terminal alkyne functional group. This unique structure makes it a versatile and valuable chemical intermediate for advanced organic synthesis and materials science research. It is primarily sought after by R&D and production teams in the pharmaceutical, agrochemical, and specialty polymer industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Serves as a key building block in the synthesis of bioactive molecules, including potential drug candidates and diagnostic agents.
• Agrochemical Synthesis: Used in the research and development of novel pesticides, herbicides, and plant growth regulators.
• Polymer & Material Science: Acts as a monomer or cross-linking agent for creating specialty polymers, coatings, and advanced materials with tailored properties.
• Click Chemistry Reagent: The terminal alkyne group enables efficient Huisgen cycloaddition reactions, a cornerstone of modern bioconjugation and material labeling strategies.
• Lubricant & Fuel Additive Research: Investigated as a precursor for synthesizing novel ester-based compounds with potential applications in high-performance lubricants and biodiesel additives.
• Surface Modification: Utilized to create self-assembled monolayers (SAMs) or to functionalize surfaces for specific chemical or biological interactions.

Basic Information

Product Name	11-Octadecynoic Acid Methyl Ester
CAS No.	26543-37-3
Molecular Formula	C₁₉H₃₄O₂
Molecular Weight	294.47 g/mol
Synonyms	Methyl 11-Octadecynoate; Methyl Stearolate; 11-Octadecynoic Acid Methyl Ester; Methyl octadec-11-ynoate; 11-Octadecynoic acid, methyl ester; Stearolic acid methyl ester
EINECS	Contact for details

Quality Control

Our 11-Octadecynoic Acid Methyl Ester is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including GC/HPLC for purity and spectroscopic identification (IR, NMR), to ensure it meets exacting specifications for research and industrial use. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, 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
Purity (GC)	≥ 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.