Merck
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03642

Supelco

α-Ionone

analytical standard

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Synonym(s):
4-(2,6,6-Trimethyl-2-cyclohexenyl)-3-buten-2-one
Empirical Formula (Hill Notation):
C13H20O
CAS Number:
Molecular Weight:
192.30
Beilstein:
3197885
EC Number:
MDL number:
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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This Item
W25940391036I12409
α-Ionone analytical standard

Supelco

03642

α-Ionone

α-Ionone ≥90%, stabilized

Sigma-Aldrich

W259403

α-Ionone

Supelco

Supelco

91036

β-Ionone

α-Ionone technical grade, 90%

Sigma-Aldrich

I12409

α-Ionone

application(s)

cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care

application(s)

flavors and fragrances

application(s)

cleaning products
cosmetics
flavors and fragrances
food and beverages
personal care

application(s)

-

format

neat

format

-

format

neat

format

-

assay

≥96.0% (GC)

assay

≥90%

assay

≥97.0% (GC)

assay

90%

shelf life

limited shelf life, expiry date on the label

shelf life

-

shelf life

limited shelf life, expiry date on the label

shelf life

-

refractive index

n20/D 1.497-1.502

refractive index

n20/D 1.498 (lit.)

refractive index

-

refractive index

n20/D 1.498 (lit.)

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.

Recommended products

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


Certificates of Analysis (COA)

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25G
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Specific anosmia observed for $\beta$-ionone, but not for $\alpha$-ionone: significance for flavor research
Plotto A, et al.
Journal of Food Science, 71(5), S401-S406 (2006)
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.
Tetrahedron Letters, 52(10), 1124-1127 (2011)
Quantitative determination of trace and ultratrace flavour active compounds in red wines through gas chromatographic?ion trap mass spectrometric analysis of microextracts.
Ferreira V, et al.
Journal of Chromatography A, 806(2), 349-354 (1998)
Identification and aroma impact of norisoprenoids in orange juice
Mahattanatawee K, et al.
Journal of Agricultural and Food Chemistry, 53(2), 393-397 (2005)

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