W309311 Sigma-Aldrich


natural, FCC, FG

Synonym: Methyl nonyl ketone

  • CAS Number 112-12-9

  • Linear Formula CH3(CH2)8COCH3

  • Molecular Weight 170.29

  •  FEMA Number 3093

  •  Beilstein/REAXYS Number 1749573

  •  EC Number 203-937-5

  •  Council of Europe no. 150c

  •  MDL number MFCD00009583

  •  PubChem Substance ID 329830563

  •  Flavis number 7.016



Related Categories A-D, Alphabetical Listings, Certified Food Grade Products, Certified Natural Products, Flavors and Fragrances,
grade   FG
reg. compliance   FCC
  FDA 21 CFR (172.515)
  EU Regulation 1334/2008 & 178/2002
vapor density   5.9 (vs air)
vapor pressure   <1 mmHg ( 20 °C)
refractive index   n20/D 1.43 (lit.)
bp   231-232 °C(lit.)
mp   11-13 °C (lit.)
density   0.825 g/mL at 25 °C (lit.)
Documentation   see Safety & Documentation for available documents
Organoleptic   fatty; waxy; fruity
food allergen   no known allergens


General description

2-Undecanone occurs naturally in wild tomato. It is also found in Ruta chalepensis essential oil and hop oil. Due to its insect repellant activity, 2-undecanone is being considered as a natural non-toxic alternative to N,N-diethyl-3-methylbenzamide or DEET.


1 kg in glass bottle

100 g in glass bottle

Biochem/physiol Actions

Taste: @ 10 ppm.

Other Notes

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Safety & Documentation

Safety Information

GHS09  GHS09
Signal word 
Hazard statements 
Precautionary statements 
UN3082 - class 9 - PG 3 - DOT NA1993 - Environmentally hazardous substances, liquid, n.o.s. HI: all (not BR)
WGK Germany 
Flash Point(F) 
192.2 °F
Flash Point(C) 
89 °C

New Product Offerings
Protocols & Articles


Securing a Traceable Supply Chain for Food Grade Flavor Ingredients

Introduction Defining "Food Grade" Understanding "Food Grade" Versus "Industrial Grade" Top Questions to Ask a Flavor & Fragrances Supplier The Sigma-Aldrich Approach
Dr. Luke Grocholl
Quality Assurance Supervisor, Sigma-Aldrich Flavors & Fragrances
Keywords: Food & Beverage, Food Safety, Solvents

The Complex Regulatory Landscape for Natural Flavor Ingredients

Introduction The Regulatory Landscape US and EU Definitions of Natural Regional Regulatory Variations The Example of Vanillin The Case for Standardization
Mr. Michael Sabisch1, Mr. David Smith2

1Senior Quality Assurance Specialist
2International Sales Coordinator, Sigma-Aldrich Flavors & Fragrances
Keywords: Fermentation, Food Safety, Oxidations

Understanding the Complexities of Kosher Ingredients

Introduction What is Kosher Product Considerations for Kosher Certification Kosher's Added Benefit to the Food Industry Sigma-Aldrich's Kosher Experience and Offering
Dr. Luke Grocholl1, Rabbi Gershon Segal

1Dr. Luke Grocholl, Quality Assurance Supervisor, Sigma-Aldrich Flavors & Fragrances
Keywords: Fermentation, Food & Beverage, Safety industry

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From a comprehensive vendor approval process, to the testing of raw material at receipt as well as when product is ready to be shipped; we prove our dedication to supply chain transparency, every day.
Keywords: Allergens, Food Safety, Solvents

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