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

Modify Date: 2025-08-23 16:06:40

2,6,6-Trimethyl-2-cyclohexene-1,4-dione Structure
2,6,6-Trimethyl-2-cyclohexene-1,4-dione structure
 Common Name 2,6,6-Trimethyl-2-cyclohexene-1,4-dione
CAS Number 1125-21-9 Molecular Weight 152.190
Density 1.0±0.1 g/cm3 Boiling Point 214.2±0.0 °C at 760 mmHg
Molecular Formula C9H12O2 Melting Point 26-28 °C(lit.)
MSDS Chinese USA Flash Point 96.1±0.0 °C
Symbol GHS07
GHS07		 Signal Word Warning

 Use of 2,6,6-Trimethyl-2-cyclohexene-1,4-dione


Ketoisophorone (4-Oxoisophorone) is a key intermediate in the synthesis of carotenoids and flavouring agents. Ketoisophorone is an industrially important cyclic endione[1].

 Names

Name 2,6,6-Trimethyl-2-cyclohexene-1,4-dione
Synonym More Synonyms

 2,6,6-Trimethyl-2-cyclohexene-1,4-dione Biological Activity

Description Ketoisophorone (4-Oxoisophorone) is a key intermediate in the synthesis of carotenoids and flavouring agents. Ketoisophorone is an industrially important cyclic endione[1].
Related Catalog
References

[1]. Hegazy ME, et al. Ketoisophorone transformation by Marchantia polymorpha and Nicotiana tabacum cultured cells. Z Naturforsch C. 2008 May-Jun;63(5-6):403-8.

 Chemical & Physical Properties

Density 1.0±0.1 g/cm3
Boiling Point 214.2±0.0 °C at 760 mmHg
Melting Point 26-28 °C(lit.)
Molecular Formula C9H12O2
Molecular Weight 152.190
Flash Point 96.1±0.0 °C
Exact Mass 152.083725
PSA 34.14000
LogP 0.76
Vapour Pressure 0.2±0.4 mmHg at 25°C
Index of Refraction 1.469

 Safety Information

Symbol GHS07
GHS07
Signal Word Warning
Hazard Statements H302-H317
Precautionary Statements P280
Personal Protective Equipment dust mask type N95 (US);Eyeshields;Faceshields;Gloves
Hazard Codes Xi:Irritant
Risk Phrases R36/37/38
Safety Phrases S26-S36/37-S37/39
RIDADR UN 2811 6.1/PG 3
WGK Germany 3
HS Code 29142900

 Synthetic Route

 Customs

HS Code 2914299000
Summary 2914299000. other cyclanic, cyclenic or cyclotherpenic ketones without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

 Articles9

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Nitroreductases (NRs) and ene-reductases (ERs) both utilize flavin mononucleotide cofactors but catalyze distinct reactions. NRs reduce nitroaromatics, whereas ERs reduce unsaturated C=C double bonds,...

Bioreduction of α,β-unsaturated ketones and aldehydes by non-conventional yeast (NCY) whole-cells.

Bioresour. Technol. 102(5) , 3993-8, (2011)

The bioreduction of α,β-unsaturated ketones (ketoisophorone, 2-methyl- and 3-methyl-cyclopentenone) and aldehydes [(S)-(-)-perillaldehyde and α-methyl-cinnamaldehyde] by 23 "non-conventional" yeasts (...

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(4R,6R)-Actinol can be stereo-selectively synthesized from ketoisophorone by a two-step conversion using a mixture of two enzymes: Candida macedoniensis old yellow enzyme (CmOYE) and Corynebacterium a...

 Synonyms

2-Cyclohexene-1,4-dione, 2,6,6-trimethyl-
2,6,6-Trimethyl-2-cyclohexen-1,4-dione
4-Oxoisophorone,Ketoisophorone
EINECS 214-406-2
2,6,6-trimethylcyclohex-2-ene-1,4-dione
MFCD00043119
4-Oxoisophorone
4-Ketoisophorone
2,6,6-Trimethyl-2-cyclohexene-1,4-dione
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Chemsrc provides 2,6,6-Trimethyl-2-cyclohexene-1,4-dione(CAS#:1125-21-9) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of 2,6,6-Trimethyl-2-cyclohexene-1,4-dione are included as well.>> amp version: 2,6,6-Trimethyl-2-cyclohexene-1,4-dione

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