Description

4-Undecyne is a terminal alkyne compound with the linear formula CH3(CH2)7C≡CH, serving as a versatile building block in advanced organic synthesis. Its value lies in its ability to participate in click chemistry reactions, such as the copper-catalyzed azide-alkyne cycloaddition (CuAAC), enabling the precise construction of complex molecular architectures. This high-purity intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries developing new active ingredients, polymers, and specialty chemicals.

Application

• Pharmaceutical Intermediate: Used in the synthesis of novel drug candidates and bioactive molecules via click chemistry and Sonogashira cross-coupling reactions.
• Agrochemical Synthesis: Serves as a key precursor for creating advanced crop protection agents with tailored properties.
• Material Science & Polymer Chemistry: A monomer for synthesizing specialty polymers, dendrimers, and functionalized surfaces with specific mechanical or chemical characteristics.
• Liquid Crystal & OLED Research: Employed in the development of organic semiconductors and liquid crystal materials for electronic displays.
• Chemical Biology & Bioconjugation: Facilitates the labeling and modification of proteins, peptides, and other biomolecules for diagnostic and research applications.
• Catalyst & Ligand Development: Used to create novel ligands and organometallic complexes for catalytic processes.

Basic Information

Item	Details
Product Name	4-Undecyne
CAS No.	60212-31-9
Molecular Formula	C11H20
Molecular Weight	152.28 g/mol
Synonyms	1-Nonyne, 2-ethyl-; 2-Ethyl-1-nonyne; Undec-4-yne; 4-Undecyne; 1-Undecyne-4; Heptylacetylene; 1-Heptyne, 4-ethyl-; 4-Ethyl-1-heptyne
EINECS	Contact for details

Quality Control

Our 4-Undecyne is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including GC, GC-MS, and NMR, to verify identity, purity, and the absence of critical impurities. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong acids and oxidizing agents. Recommended storage temperature is 2-8°C for long-term stability. Keep container tightly sealed when not in use to prevent evaporation and potential moisture absorption.

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.