Description

1-Octadecyne is a high-purity, long-chain terminal alkyne with significant utility as a versatile organic building block. Its linear C18 hydrocarbon chain terminated by a reactive acetylene group makes it a valuable intermediate for synthesizing specialty polymers, surfactants, and advanced materials. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries seeking to introduce hydrophobic alkyl chains or create complex molecular architectures.

Application

• Organic Synthesis Intermediate: A key precursor for synthesizing longer-chain compounds, pharmaceuticals, and liquid crystals via Sonogashira coupling and other cross-coupling reactions.
• Surface Chemistry & Monolayers: Used to create self-assembled monolayers (SAMs) on gold and other metal surfaces for sensor development and surface modification.
• Polymer Science: Serves as a monomer or chain-transfer agent in the production of specialty polyacetylenes and functional polymers with tailored properties.
• Lubricant & Fuel Additive Synthesis: Acts as a chemical feedstock for manufacturing high-performance lubricant additives and fuel stabilizers.
• Agrochemical Intermediates: Employed in the synthesis of certain plant growth regulators and pesticide formulations.
• Research & Development: A standard reagent in academic and industrial R&D for exploring new catalytic processes and material properties.

Basic Information

Product Name	1-Octadecyne
CAS No.	629-89-0
Molecular Formula	C₁₈H₃₄
Molecular Weight	250.46 g/mol
Synonyms	Octadec-1-yne; n-Octadecyne; Stearylacetylene; 1-Heptadecyne (common misnomer); C18 Alkyne; Terminal Octadecyne; n-Octadec-1-yne; Octadecyne
EINECS	211-110-6

Quality Control

Our 1-Octadecyne is produced under stringent quality management systems to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including Gas Chromatography (GC) and NMR to verify identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, physical properties, and impurity profiles is provided with every shipment 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 (15-25°C). Keep away from strong oxidizing agents, acids, and heat sources. For long-term storage, consider under an inert atmosphere such as nitrogen to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline solid or waxy solid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Melting Point	Approx. 25 - 28 °C
Heavy Metals	< 10 ppm

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