33083-83-9

Basic information

• Product Name: 5-UNDECANONE
• Synonyms: 5-UNDECANONE;N-BUTYL N-HEXYL KETONE;Butyl hexyl ketone;Undecan-5-one;5-Hendecanone
• CAS NO: 33083-83-9
• Molecular Formula: C₁₁H₂₂O
• Molecular Weight: 170.29
• EINECS: 251-371-2
• Mol File: 33083-83-9.mol
• Article Data: 18

Chemical Properties

• Melting Point: 1-2°C
• Boiling Point: 103-106°C 12mm
• Flash Point: 103-106°C/12mm
• Appearance: /
• Density: 0,83 g/cm3
• Vapor Pressure: 0.081mmHg at 25°C
• Refractive Index: 1.4280
• BRN: 1749497
• CAS DataBase Reference: 5-UNDECANONE(CAS DataBase Reference)
• NIST Chemistry Reference: 5-UNDECANONE(33083-83-9)
• EPA Substance Registry System: 5-UNDECANONE(33083-83-9)

Safety Data

• Safety Statements: S24/25:Avoid contact with skin and eyes.
• Hazardous Substances Data: 33083-83-9(Hazardous Substances Data)

Usage

General Description

5-Undecanone is a naturally occurring organic compound, also known as methyl nonyl ketone, with the chemical formula C11H22O. It is found in various plants, fruits, and essential oils such as citrus fruits, lemongrass, and verbena. 5-Undecanone is widely used in the manufacturing of perfumes, soaps, and other personal care products due to its citrus-like, fruity scent. It is also used as a flavoring agent in the food industry and as an insect repellent in pesticides and insecticides. Additionally, 5-Undecanone has shown potential as a natural alternative to DEET for insect repellency and is considered safe for use in various consumer products.

InChI:InChI=1/C11H22O/c1-3-5-7-8-10-11(12)9-6-4-2/h3-10H2,1-2H3

Upstream product

• 925-90-6 ethylmagnesium bromide 
• 821-95-4 1-undecene 
• 109-72-8 n-butyllithium 
• 107-13-1 acrylonitrile 
• 3431-67-2 di-n-butylcadmium 
• 2528-61-2 Heptanoic acid chloride 
• 5698-48-6 2-butyl-1-octene 
• 10028-15-6 ozone 
• 64-19-7 acetic acid 
• 2388-12-7 peroxylaurinoic acid 
• 111-14-8 oenanthic acid 
• 109-52-4 valeric acid 
• 23542-51-0 5-nitropent-1-ene 
• 119072-55-8 tert-butylisonitrile 

Downstream Products

• 37493-70-2 undecan-5-ol 

Relevant articles and documents

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Catalytic ketonisation over oxide catalysts. Part IX. Single step synthesis of aliphatic saturated and unsaturated C11 - C 13 ketones from carboxylic acids

Metameric undecan-x-ones (x = 2-6), dodecan-y-ones (y = 2-5), tridecan-z-ones (z = 4-7) and two unsaturated aliphatic ketones were prepared by vapor phase ketonisation of the appropriate monocarboxylic acids in the presence of 20 wt% MnO2/Al2O3 catalyst under flow conditions. The ketones were obtained in yields between 48 and 89% in a multigram scale (80-250 g). Their physical and spectral data have been determined.

New version of the TEMPO-based catalytic system for the oxidation of alcohols to aldehydes

A new chemoselective catalytic system for the title oxidation was developed using methyltrioxorhenium (3 mol%), KBr (10 mol%) and TEMPO (3 mol%) as co-catalysts and Oxone as a terminal oxidant.

Preparation of aldehydes or ketones from alcohols

A process for preparing an aldehyde or ketone comprising reacting a primary or secondary alcohol with oxygen in the presence of a base, a catalytic amount of a copper salt and a suitable lignad under anhydrous conditions.