Description

5-Nonen-3-Yn-2-One, (Z)- (9Ci) is a specialized aliphatic enynone compound with the CAS registry number 116428-94-5. This molecule is valued for its unique conjugated system of a double and triple bond adjacent to a carbonyl group, making it a versatile and reactive intermediate in advanced organic synthesis. It is primarily sought after by research chemists and process development scientists in the pharmaceutical, agrochemical, and fragrance industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly those requiring specific stereochemistry and functional group arrays.
• Agrochemical Synthesis: Used in the research and development of new pesticides and herbicides, leveraging its reactivity to create complex bioactive molecules.
• Fragrance & Flavor Chemistry: Serves as a precursor for synthesizing unique odorants and flavor compounds due to its unsaturated ketone structure.
• Material Science Research: Employed in the development of advanced polymers and organic electronic materials as a functional monomer or cross-linking agent.
• Academic & Industrial R&D: A valuable tool for methodological studies in organic chemistry, including cycloaddition reactions and catalytic transformations.

Basic Information

Product Name	5-Nonen-3-Yn-2-One, (Z)- (9Ci)
CAS No.	116428-94-5
Molecular Formula	C9H12O
Molecular Weight	136.19 g/mol
Synonyms	(Z)-5-Nonen-3-yn-2-one; (Z)-Non-5-en-3-yn-2-one; (5Z)-5-Nonen-3-yn-2-one; 5-Nonen-3-yn-2-one, (5Z)-; 116428-94-5; (Z)-1-Pentene-4-yn-3-one, 1-ethyl-; Light-sensitive aliphatic enynone
EINECS	Contact for details

Quality Control

We maintain stringent quality control protocols for our fine chemical intermediates. Each batch of 5-Nonen-3-Yn-2-One, (Z)- (9Ci) is analyzed to ensure high purity and consistency, with specifications typically covering identity, assay, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing the results from techniques such as GC, HPLC, NMR, and IR spectroscopy is provided with every shipment to support your quality assurance and regulatory needs.

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 place. Due to its highly volatile and easily oxidized nature, prolonged exposure to air, heat, or light should be avoided. Recommended storage temperature is 2-8°C for long-term stability.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Identification (NMR)	Conforms to structure
Purity (GC/HPLC)	≥ 95.0% (Area %)
Isomeric Purity (Z-isomer)	≥ 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.