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W259411

Sigma-Aldrich

α-Ionone

natural, ≥86%

Synonym(s):

4-(2,6,6-Trimethyl-2-cyclohexenyl)-3-buten-2-one

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About This Item

Empirical Formula (Hill Notation):
C13H20O
CAS Number:
127-41-3
Molecular Weight:
192.30
FEMA Number:
2594
Beilstein:
3197885
EC Number:
204-841-6
Council of Europe no.:
141
MDL number:
MFCD00001565
UNSPSC Code:
12164502
PubChem Substance ID:
24901175
Flavis number:
7.007
NACRES:
NA.21

grade

Halal
Kosher
natural

Quality Level

400

reg. compliance

FDA 21 CFR 117

Assay

≥86%

refractive index

n20/D 1.498 (lit.)

bp

259-263 °C (lit.)

density

0.93 g/mL at 25 °C (lit.)

application(s)

flavors and fragrances

Documentation

see Safety & Documentation for available documents

food allergen

no known allergens

Organoleptic

floral

SMILES string

CC(=O)\C=C\C1C(C)=CCCC1(C)C

InChI

1S/C13H20O/c1-10-6-5-9-13(3,4)12(10)8-7-11(2)14/h6-8,12H,5,9H2,1-4H3/b8-7+

InChI key

UZFLPKAIBPNNCA-BQYQJAHWSA-N

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Product No.
Description
Pricing

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H334

Precautionary Statements

P261 - P342 + P311

Hazard Classifications

Resp. Sens. 1

Storage Class Code

10 - Combustible liquids

WGK

WGK 2

Flash Point(F)

244.4 °F - closed cup

Flash Point(C)

118 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCJ3541
MKCD8810
MKCC2303
MKBZ4708V
MKBT6908V

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Sabine Sewenig et al.
Journal of agricultural and food chemistry, 53(4), 838-844 (2005-02-17)
A new coupling system of GC-GC, connected via a Multi Column Switching Device MCS2 for measuring isotope ratios, is introduced. By means of several standard substances the precise and accurate measurement of isotopic values is proved. First applications concerning the
Yonghong Wu et al.
Environmental microbiology, 13(3), 604-615 (2010-11-09)
Periphyton biofilms are natural mixtures comprised of photoautotrophic and heterotrophic complex microorganisms. In this work, the inhibition effects of periphyton biofilms on cyanobacterial blooms were studied in pilot and field trials. Results show that the cyanobacterial species responsible for the
J Lalko et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 45 Suppl 1, S251-S257 (2007-11-23)
A toxicologic and dermatologic review of ionone when used as a fragrance ingredient is presented.
Marco Luparia et al.
Chemistry & biodiversity, 5(6), 1045-1057 (2008-07-12)
To study the influence of the steric bulk of the substituents at C(5) on the olfactory characteristics of alpha-ionone, the (S)-antipodes of compounds 8-10 were synthesized starting from (S)-alpha-cyclogeraniol (14a). The latter was available in useful preparative yield with 95%
S Lutz-Wahl et al.
Applied and environmental microbiology, 64(10), 3878-3881 (1998-10-06)
A total of 215 Streptomyces strains were screened for their capacity to regio- and stereoselectively hydroxylate beta- and/or alpha-ionone to the respective 3-hydroxy derivatives. With beta-ionone as the substrate, 15 strains showed little conversion to 4-hydroxy- and none showed conversion
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