2,3-HEXANEDIONE
Synonym(s):2,3-Hexanedione;Acetyl butyryl;propyl diketone, methylpropylglyoxal
- CAS NO.：3848-24-6
- Empirical Formula: C6H10O2
- Molecular Weight: 114.14
- MDL number: MFCD00009398
- EINECS: 223-350-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:16:33
What is 2,3-HEXANEDIONE?
Description
2,3-Hexanedione has a powerful, creamy, sweet, and buttery odor (less than diacetyl) and a buttery, cheese taste. It may be synthesized from propionyl aldehyde condensed over ethyl acetylacetate;the resulting product is then oxidized (H2O2 and sodium tungstate), hydrolyzed, and finally decarboxylated to 2,3-hexanedione; from methyl butyl ketone and ethyl propyl ketone by way of the monoxime; also from acetoxy mesityl oxide.
Chemical properties
yellow liquid
Chemical properties
2,3-Hexanedione has a powerful, creamy, sweet and buttery odor (less than diacetyl) and a buttery cheese taste.
Occurrence
Reported found in fermented soybean, peach, roasted chicken, beer, coffee, shoyu and clam.
The Uses of 2,3-HEXANEDIONE
2,3-Hexanedione is used to evaluate the influence of xanthan concentration on the release of aroma compounds in xanthan-thickened food model systems. It reacts with ethylenediamine to yield macrocyclic tetradentate 12-membered nitrogen donor (N4) ligand.
The Uses of 2,3-HEXANEDIONE
2,3-Hexanedione was used to evaluate the influence of xanthan concentration on the release of aroma compounds in xanthan-thickened food model systems.
What are the applications of Application
2,3-Hexanedione is used to evaluate the influence of xanthan concentration on the release of aroma compounds in xanthan-thickened food model systems
Definition
ChEBI: An alpha-diketone that is hexane substituted by oxo groups at positions 2 and 3 respectively.
Preparation
From propionyl aldehyde condensed over ethyl acetylacetate; the resulting product is then oxidized (H2O2 and sodium tungstate), hydrolyzed and finally decarboxylated to 2,3-dexanedione; from methyl butyl ketone and ethyl propyl ketone by way of the monoxime; also from acetoxy mesityl oxide
Taste threshold values
Taste characteristics at 50 ppm: creamy, fruity, toasted brown, caramellic notes.
General Description
Yellow liquid. Sharp penetrating odor in high concentrations. Sweet, aromatic odor when diluted.
Air & Water Reactions
Highly flammable. Insoluble in water.
Reactivity Profile
2,3-HEXANEDIONE is incompatible with strong oxidizing agents and strong bases.
Fire Hazard
2,3-HEXANEDIONE is flammable.
Properties of 2,3-HEXANEDIONE
| Melting point: | -30 °C |
| Boiling point: | 128 °C(lit.) |
| Density | 0.934 g/mL at 25 °C(lit.) |
| vapor density | 3.9 (vs air) |
| vapor pressure | 10 mm Hg ( 20 °C) |
| FEMA | 2558 | 2,3-HEXANEDIONE |
| refractive index | n |
| Flash point: | 83 °F |
| storage temp. | Store below +30°C. |
| solubility | H2O: soluble (slightly soluble) |
| form | neat |
| Odor | at 1.00 % in dipropylene glycol. dry sweet caramel butter oily fatty creamy phenolic fruity |
| explosive limit | 1.2-5.9%(V) |
| Water Solubility | Partly miscible in water. |
| JECFA Number | 412 |
| BRN | 1699896 |
| Stability: | Stable. Flammable. Incompatible with strong bases, strong oxidizing agents. |
| CAS DataBase Reference | 3848-24-6(CAS DataBase Reference) |
| EPA Substance Registry System | 2,3-Hexanedione (3848-24-6) |
Safety information for 2,3-HEXANEDIONE
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02  Health Hazard GHS08 |
| GHS Hazard Statements |
H226:Flammable liquids H373:Specific target organ toxicity, repeated exposure |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P242:Use only non-sparking tools. P314:Get medical advice/attention if you feel unwell. |
Computed Descriptors for 2,3-HEXANEDIONE
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