Description

9-Eicosyne is a high-purity, long-chain terminal alkyne with the CAS registry number 71899-38-2, serving as a versatile and valuable building block in advanced organic synthesis. Its unique structure, featuring a reactive carbon-carbon triple bond at the terminus of a C20 hydrocarbon chain, makes it a critical intermediate for constructing complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and materials science industries, particularly for applications in polymer cross-linking, surface modification, and the synthesis of bioactive molecules.

Application

• Pharmaceutical Intermediate: Used in the synthesis of novel drug candidates, especially in click chemistry for bioconjugation and the development of targeted therapies.
• Polymer Science & Material Modification: Acts as a key monomer or cross-linking agent in the production of specialty polymers, resins, and functionalized surfaces with tailored properties.
• Agrochemical Synthesis: Serves as a precursor for creating advanced crop protection agents and plant growth regulators.
• Liquid Crystal & OLED Materials: Employed in the development of organic electronic components and display technologies due to its ability to form rigid, conjugated structures.
• Chemical Biology & Proteomics: Utilized as a probe or tag in bioorthogonal labeling strategies to study biological processes.
• Lubricant & Fuel Additive Research: Investigated for its potential to modify the physical properties of industrial fluids and fuels.

Basic Information

Product Name	9-Eicosyne
CAS No.	71899-38-2
Molecular Formula	C₂₀H₃₈
Molecular Weight	278.52 g/mol
Synonyms	1-Nonadecyne; Eicos-9-yne; 9-Eicosen-1-yne; 9-Eicosyne; Nonadec-1-yne; 1-Nonadecyne; 9-Eicosenyne; 1-Heptadecylethyne
EINECS	Contact for details

Quality Control

Our 9-Eicosyne is produced under stringent quality management protocols to ensure batch-to-batch consistency and high chemical purity. Each lot undergoes comprehensive analytical testing, including Gas Chromatography (GC) and Nuclear Magnetic Resonance (NMR) spectroscopy, to verify identity and assay. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting purity levels and confirming compliance with agreed specifications.

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 heat, sparks, open flames, and strong oxidizing agents. For long-term storage, consider maintaining under an inert atmosphere such as nitrogen or argon to prevent potential oxidation.

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.