Description

5-Undecen-4-One is a versatile, medium-chain aliphatic ketone featuring an unsaturated carbon-carbon bond. This unique structure makes it a valuable chemical intermediate and flavor and fragrance ingredient for high-value synthesis. It is primarily sought after by manufacturers in the aroma chemical and fine chemical industries for creating complex organoleptic profiles and specialty molecules.

Application

• Flavor & Fragrance (F&F) Industry: Used as a key building block for synthesizing musk analogs, fruity esters, and green, waxy olfactory notes.
• Pharmaceutical Intermediates: Serves as a precursor in the synthesis of specific active pharmaceutical ingredients (APIs) and other bioactive compounds.
• Agrochemical Synthesis: Employed in the production of certain pesticides and herbicides, leveraging its reactive ketone and alkene functionalities.
• Organic Synthesis & Research: A valuable reagent for academic and industrial R&D, particularly in studies involving carbonyl addition reactions and olefin metathesis.
• Specialty Polymer Chemistry: Can be used as a co-monomer or cross-linking agent to introduce specific functional groups into polymer chains.

Basic Information

Product Name	5-Undecen-4-One
CAS No.	56312-55-1
Molecular Formula	C₁₁H₂₀O
Molecular Weight	168.28 g/mol
Synonyms	5-Undecen-4-one; 4-Undecen-5-one; 5-Hexen-4-one, 6-methyl-; Undec-5-en-4-one; 6-Methyl-5-hexen-4-one; 4-Oxoundec-5-ene
EINECS	Contact for details

Quality Control

Our 5-Undecen-4-One is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including GC, IR, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat sources and incompatible materials. Due to its sensitivity to oxidation, it is recommended to store under an inert atmosphere (e.g., nitrogen) for long-term preservation. Recommended storage temperature: 2-8°C.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Refractive Index (20°C)	1.440 - 1.445
Specific Gravity (20/20°C)	0.840 - 0.850

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