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03642

Supelco

α-Ionone

analytical standard

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:
Molecular Weight:
192.30
Beilstein:
3197885
EC Number:
MDL number:
UNSPSC Code:
77101502
PubChem Substance ID:
NACRES:
NA.24

grade

analytical standard

Quality Level

Assay

≥96.0% (GC)

shelf life

limited shelf life, expiry date on the label

refractive index

n20/D 1.497-1.502
n20/D 1.498 (lit.)

bp

259-263 °C (lit.)

density

0.93 g/mL at 25 °C (lit.)

application(s)

cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care

format

neat

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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General description

α-lonone is a C13 norterpenoid formed from the degradation of carotenoids. It is an important fragrance compound used in perfume industries due to its characteristic fine violet and rose scents. Commercially α-lonone is used in cosmetics, personal care products, detergents, etc. As a flavoring agent, it is widely used in various beverages including wine and tea.

Application

α-Ionone may be used as an analytical reference standard for the determination of the analyte in various beverages by chromatography-based techniques.

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Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Pictograms

Health hazard

Signal Word

Danger

Hazard Statements

Precautionary Statements

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


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Specific anosmia observed for $\beta$-ionone, but not for $\alpha$-ionone: significance for flavor research
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Journal of Food Science, 71(5), S401-S406 (2006)
Determination of volatile chemical constitutes in tea by simultaneous distillation extraction, vacuum hydrodistillation and thermal desorption
Zhu M, et al.
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Identification and aroma impact of norisoprenoids in orange juice
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Journal of Agricultural and Food Chemistry, 53(2), 393-397 (2005)
Quantitative determination of $\alpha$-ionone, $\beta$-ionone, and $\beta$-damascenone and enantiodifferentiation of $\alpha$-ionone in wine for authenticity control using multidimensional gas chromatography with tandem mass spectrometric detection
Langen J, et al.
Analytical and Bioanalytical Chemistry, 408(23), 6483-6496 (2016)
Gold-mediated synthesis of $\alpha$-ionone
Merlini V, et al.
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