Description

(Z)-3-Undecen-1-Yne CAS NO 74744-32-4 is a high-purity, unsaturated aliphatic compound featuring both a terminal alkyne and a cis-configured double bond, making it a versatile building block in advanced organic synthesis. This unique structure is critical for constructing complex molecular architectures through selective coupling and cycloaddition reactions. It is an essential intermediate for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty materials sectors who require precise control over molecular geometry and functionality.

Application

• Pharmaceutical Intermediate: Serves as a key synthon for the development of novel active pharmaceutical ingredients (APIs), particularly in the synthesis of compounds with specific stereochemistry.
• Agrochemical Synthesis: Used in the research and production of advanced crop protection agents, including fungicides and herbicides, where its alkyne group enables modular construction.
• Material Science Research: Acts as a monomer or cross-linking agent in the development of specialized polymers, liquid crystals, and organic electronic materials.
• Flavor & Fragrance Chemistry: Employed as a precursor for synthesizing specific unsaturated aldehydes and ketones that contribute to complex scent and flavor profiles.
• Academic & Industrial R&D: A valuable reagent for methodology development in organic chemistry, including Sonogashira coupling, click chemistry, and other metal-catalyzed transformations.

Basic Information

Product Name	(Z)-3-Undecen-1-Yne
CAS No.	74744-32-4
Molecular Formula	C₁₁H₁₈
Molecular Weight	150.26 g/mol
Synonyms	(Z)-3-Undecen-1-yne; (Z)-Undec-3-en-1-yne; cis-3-Undecen-1-yne; 3-Undecen-1-yne, (Z)-; 1-Undecen-3-yne, (Z)-; Terminal alkyne C11; C11 Alkenyne Building Block
EINECS	Contact for details

Quality Control

Our (Z)-3-Undecen-1-Yne is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including GC, GC-MS, and NMR, to ensure high chemical purity and isomeric integrity. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at 2-8°C to minimize oxidation and polymerization. Keep away from heat, sparks, and open flames. For long-term storage, consider freezing at -20°C under inert gas.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0% (Area %)
Isomeric Purity (Z-isomer, GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%

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