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W309303

Sigma-Aldrich

2-Undecanone

≥98%, FCC, FG

Synonym(s):

Methyl nonyl ketone

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About This Item

Linear Formula:
CH3(CH2)8COCH3
CAS Number:
112-12-9
Molecular Weight:
170.29
FEMA Number:
3093
Beilstein/REAXYS Number:
1749573
EC Number:
203-937-5
Council of Europe no.:
150
MDL number:
MFCD00009583
UNSPSC Code:
12164502
PubChem Substance ID:
24901461
Flavis number:
7.016
NACRES:
NA.21

biological source

synthetic

Quality Level

400

grade

FG
Halal
Kosher

agency

meets purity specifications of JECFA

reg. compliance

EU Regulation 1334/2008 & 178/2002
FCC
FDA 21 CFR 172.515

vapor density

5.9 (vs air)

vapor pressure

<1 mmHg ( 20 °C)

assay

≥98%

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.)

application(s)

flavors and fragrances

documentation

see Safety & Documentation for available documents

food allergen

no known allergens

organoleptic

fatty; waxy; fruity

SMILES string

CCCCCCCCCC(C)=O

InChI

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

InChI key

KYWIYKKSMDLRDC-UHFFFAOYSA-N

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General description

2-Undecanone occurs naturally in wild tomato. It is also found in Ruta chalepensis essential oil and hop oil. 2-Undecanone is an insect and tick repellant.

Application

  • (14)C-Isotope Use to Quantify Covalent Reactions between Flavor Compounds and β-Lactoglobulin.: Research utilizing 2-Undecanone to study its binding interactions with milk proteins, enhancing understanding of flavor compound stability and protein binding in food products (Shepelev and Reineccius, 2024).

pictograms

Environment
GHS09

signalword

Warning

hcodes

H410

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1

wgk_germany

WGK 2

flash_point_f

192.2 °F

flash_point_c

89 °C

ppe

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Novel arthropod repellent, BioUD, is an efficacious alternative to deet.
Witting-Bissinger BE, et al.
Journal of Medical Entomology, 45(5), 891-898 (2008)
Constituents of the essential oil of Ruta chalepensis L. from Turkey.
Baser KHC, et al.
J. Essent. Oil Res., 8(4), 413-414 (1996)
Release characteristics of the non-toxic insect repellant 2-undecanone from its crystalline inclusion compound with ?-cyclodextrin.
Whang HS & Tonelli A.
Journal of Inclusion Phenomena and Macrocyclic Chemistry, 62(1-2), 127-134 (2008)
2?Undecanone, a constituent of the glandular trichomes of Lycopersicon hirsutum f. glabratum: Effects on Heliothis zea and Manduca sexta growth and survival.
Farrar RR & Kennedy GG.
Entomologia Experimentalis et Applicata, 43(1), 17-23 (1987)
J D Bohbot et al.
Medical and veterinary entomology, 25(4), 436-444 (2011-03-15)
Several lines of evidence suggest that insect repellent molecules reduce mosquito-host contacts by interacting with odorants and odorant receptors (ORs), thereby ultimately affecting olfactory-driven behaviours. We describe the molecular effects of 10 insect repellents and a pyrethroid insecticide with known
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