Description

1-Undecen-3-Yne is a high-purity, linear terminal alkyne and alkene bifunctional building block with the CAS registry number 74744-28-8. This compound is valued for its unique reactivity, serving as a versatile intermediate in advanced organic synthesis and materials science. It is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries who require precise molecular scaffolds for constructing complex architectures.

Application

• Pharmaceutical Intermediate: A key synthon for the development of novel active pharmaceutical ingredients (APIs) and bioactive molecules via click chemistry and cross-coupling reactions.
• Agrochemical Synthesis: Used in the research and production of advanced crop protection agents and herbicides.
• Polymer & Material Science: Serves as a monomer or cross-linking agent for creating specialty polymers, dendrimers, and functionalized surfaces with tailored properties.
• Organic Synthesis Building Block: Employed in Huisgen cycloaddition (click chemistry), Sonogashira coupling, and other catalytic transformations to introduce alkyne and alkene functionalities.
• Liquid Crystal & OLED Research: A potential precursor for synthesizing organic semiconductors and liquid crystal materials for electronic displays.
• Fragrance & Flavor Chemistry: Used in the synthesis of specific aroma compounds and flavor ingredients.
• Chemical Biology Probes: Utilized for labeling and modifying biomolecules in proteomics and diagnostic assay development.

Basic Information

Product Name	1-Undecen-3-Yne
CAS No.	74744-28-8
Molecular Formula	C₁₁H₁₈
Molecular Weight	150.26 g/mol
Synonyms	Undeca-1-en-3-yne; 1-Undecene-3-yne; 3-Undecyn-1-ene; 1-Undecyn-3-ene; 1-Undecen-3-yne; 1-Undecyne-3-ene; 1-Undecen-3-ine; Terminal alkenyl alkyne C11
EINECS	Contact for details

Quality Control

Our 1-Undecen-3-Yne is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including GC, GC-MS, and NMR, to ensure high chemical purity and identity confirmation. A Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance with your research or production 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) under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation and polymerization. Keep away from heat, sparks, open flames, and strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (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.