Description

9-Octadecyne is a high-purity, long-chain terminal alkyne with the CAS registry number 35365-59-4. This compound serves as a versatile and valuable chemical building block for organic synthesis and materials science research. It is primarily utilized by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: Used in the synthesis of bioactive molecules and potential drug candidates via click chemistry (CuAAC) and other alkyne-based coupling reactions.
• Agrochemical Synthesis: Acts as a key precursor for creating novel plant protection agents and growth regulators with tailored hydrophobic properties.
• Polymer & Material Science: Employed as a monomer or cross-linking agent for developing functional polymers, surface coatings, and advanced materials with specific mechanical or chemical properties.
• Organic Synthesis Building Block: Utilized in Sonogashira coupling, hydrofunctionalization, and cycloaddition reactions to introduce long alkyl chains into target molecules.
• Lubricant & Surfactant Research: Serves as a model compound or intermediate for developing novel synthetic lubricants, surfactants, and flow improvers.
• Chemical Derivatization: Used to modify surfaces, nanoparticles, or biomolecules by introducing alkyne handles for further functionalization.

Basic Information

Product Name	9-Octadecyne
CAS No.	35365-59-4
Molecular Formula	C₁₈H₃₄
Molecular Weight	250.46 g/mol
Synonyms	Octadec-9-yne; 9-Octadecyne; 1-Heptadecyne; n-Heptadecylacetylene; Stearolic Acid Alkyne Homolog
EINECS	Contact for details

Quality Control

Our 9-Octadecyne is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including GC, HPLC, and NMR, to ensure high chemical purity and identity confirmation. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting purity, assay, and impurity profiles to support your research and quality assurance requirements.

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.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.1%

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