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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
grade:
FG
Fragrance grade
Halal
Kosher
biological source:
synthetic
food allergen:
no known allergens

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

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