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Key Documents

W342106

Sigma-Aldrich

4-Oxoisophorone

≥98%, FG

Synonym(s):

2,6,6-Trimethyl-2-cyclohexene-1,4-dione, 4-Oxoisophorone, Ketoisophorone

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About This Item

Empirical Formula (Hill Notation):
C9H12O2
CAS Number:
Molecular Weight:
152.19
FEMA Number:
3421
Beilstein:
2207030
EC Number:
Council of Europe no.:
11200
MDL number:
UNSPSC Code:
12164502
PubChem Substance ID:
Flavis number:
7.109
NACRES:
NA.21

biological source

synthetic

Quality Level

grade

FG
Fragrance grade
Halal
Kosher

Agency

follows IFRA guidelines
meets purity specifications of JECFA

reg. compliance

EU Regulation 1223/2009
EU Regulation 1334/2008 & 178/2002

Assay

≥98%

refractive index

n20/D 1.491 (lit.)

bp

222 °C (lit.)
92-94 °C/11 mmHg (lit.)

mp

26-28 °C (lit.)

application(s)

flavors and fragrances

Documentation

see Safety & Documentation for available documents

food allergen

no known allergens

fragrance allergen

no known allergens

Organoleptic

musty; woody; sweet

SMILES string

CC1=CC(=O)CC(C)(C)C1=O

InChI

1S/C9H12O2/c1-6-4-7(10)5-9(2,3)8(6)11/h4H,5H2,1-3H3

InChI key

AYJXHIDNNLJQDT-UHFFFAOYSA-N

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General description

4-Oxoisophorone is a flavor compound found in tobacco and saffron.

Application

<ul>
<li><strong>Characterization of Evodia rutaecarpa (Juss) Benth honey: volatile profile, odor-active compounds and odor properties.</strong> This study investigates the unique aroma compounds in Evodia rutaecarpa honey, identifying 4-Oxoisophorone as a key component influencing its sensory characteristics, crucial for developing enhanced food products with distinct flavors (Li et al., 2024).</li>
<li><strong>Enantioselective Total Synthesis of (R,R)-Blumenol B and d(9)-(R,R)-Blumenol B.</strong> Describes the synthesis of biologically active compounds using 4-Oxoisophorone as a precursor, demonstrating its versatility in chemical synthesis and potential applications in developing pharmaceutical agents (Tan et al., 2022).</li>
<li><strong>The mystery of the butterfly bush Buddleja davidii: How are the butterflies attracted </strong> Explores the chemical attractants of Buddleja davidii, with 4-Oxoisophorone identified as a significant attractant, which could have implications for enhancing biodiversity and garden ecology (Lehner et al., 2022).</li>
</ul>

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Skin Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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Study on the flavor change of tobacco powder during enzymatic hydrolysis and Maillard reaction
Wen DM, et al.
Science and Technology of Food Industry, 12, 038-038 (2012)
Worldwide market screening of saffron volatile composition.
Maggi L, et al.
Journal of the Science of Food and Agriculture, 89(11), 1950-1954 (2009)
Mohamed-Elamir F Hegazy et al.
Zeitschrift fur Naturforschung. C, Journal of biosciences, 63(5-6), 403-408 (2008-08-02)
Stereospecific olefin (C=C) and carbonyl (C=O) reduction of the readily available prochiral compound ketoisophorone (2,2,6-trimethyl-2-cyclohexene-1,4-dione) (1) by Marchantia polymorpha and Nicotiana tabacum cell suspension cultures produce the chiral products (6R)-levodione (2), (4R,5S)-4-hydroxy-3,3,5-trimethylcyclohexanone (3), and (4R,6R)-actinol (4) as well as the
Stefano Raimondi et al.
Journal of biotechnology, 156(4), 279-285 (2011-09-22)
Old yellow enzymes (OYEs, EC 1.6.99.1) are flavin-dependent oxidoreductases that catalyze the stereoselective trans-hydrogenation of the double bond, representing a promising alternative to metal-based catalysis. Bioconversion of ketoisophorone (KIP) by 28 non-conventional yeasts belonging to 16 different species was investigated.
Matthias Lechtenberg et al.
Planta medica, 74(7), 764-772 (2008-05-23)
Extracts from saffron, the dried stigmata from Crocus sativus L., are being used more and more in preclinical and clinical trials for the treatment of cancer and depression. Because of the known quality problems of saffron, HPLC methods on RP(18)

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