Description

4-Ethyl-3-Nonen-5-Yne is a specialized aliphatic compound featuring both a double and a triple bond, making it a valuable building block in advanced organic synthesis. Its unique unsaturated structure is critical for constructing complex molecular frameworks, particularly in the development of fine chemicals and advanced materials. This high-purity intermediate is essential for research and production in sectors such as pharmaceuticals, agrochemicals, and specialty polymers, where precise chemical functionality is required.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the synthesis of novel active pharmaceutical ingredients (APIs) and complex drug candidates.
• Agrochemical Synthesis: Used in the research and development of new pesticides, herbicides, and plant growth regulators.
• Specialty Polymer & Material Science: Acts as a monomer or cross-linking agent for creating polymers with specific thermal or mechanical properties.
• Organic Synthesis & Catalysis Research: A versatile reagent in academic and industrial R&D for exploring new catalytic cycles and reaction methodologies.
• Liquid Crystal & Electronic Material Precursor: Employed in the synthesis of organic components for display technologies and electronic devices.
• Fragrance & Flavor Chemistry: Used as an intermediate for constructing specific unsaturated odorant molecules.

Basic Information

Product Name	4-Ethyl-3-Nonen-5-Yne
CAS No.	74685-67-9
Molecular Formula	C₁₁H₁₈
Molecular Weight	150.26 g/mol
Synonyms	3-Nonen-5-yne, 4-ethyl-; 4-Ethylnon-3-en-5-yne; (E)-4-Ethyl-3-nonen-5-yne; (Z)-4-Ethyl-3-nonen-5-yne; 4-Ethyl-3-nonene-5-yne; 74685-67-9; 4-Ethylnon-3-en-5-yne (cis/trans mixture)
EINECS	Contact for details

Quality Control

Every batch of 4-Ethyl-3-Nonen-5-Yne is manufactured under strict quality management protocols. We employ advanced analytical techniques including GC, GC-MS, and NMR to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee it meets your specific research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its highly volatile and easily oxidized nature, minimize exposure to air and handle in a fume hood. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (GC)	≥ 95.0% (Typical 97-99%)
Water Content (KF)	≤ 0.5%
Isomer Ratio (cis/trans)	Specified upon request

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