5-METHYL-2,3-HEXANEDIONE
- CAS NO.：13706-86-0
- Empirical Formula: C7H12O2
- Molecular Weight: 128.17
- MDL number: MFCD00059352
- EINECS: 237-241-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 00:20:00
What is 5-METHYL-2,3-HEXANEDIONE?
Description
5-Methyl-2,3-hexanedione has a powerful oily-buttery odor with a sweet taste in aqueous solution. May be synthesized by bromination of mesityl oxide, followed by treatment of the resulting dibromide with sulfuric acid.
Chemical properties
5-Methyl-2,3-hexanedione has a powerful, oily-buttery odor and a sweet taste in aqueous solution.
Occurrence
Reported found in coffee and American potato chips
Definition
ChEBI: 5-Methyl-2,3-hexanedione is an alpha-diketone.
Safety Profile
A skin irritant. When heated to decomposition it emits acrid smoke and irritating fumes.
Properties of 5-METHYL-2,3-HEXANEDIONE
| Melting point: | 26.25°C (estimate) |
| Boiling point: | 138 °C |
| Density | 0,92 g/cm3 |
| refractive index | 1.4148 (589.3 nm 20℃) |
| FEMA | 3190 | 5-METHYL-2,3-HEXANEDIONE |
| Flash point: | 33°C |
| form | clear liquid |
| color | Light yellow to Brown |
| Odor | at 1.00 % in propylene glycol. sweet sharp fruity creamy brown butter |
| JECFA Number | 414 |
| EPA Substance Registry System | 2,3-Hexanedione, 5-methyl- (13706-86-0) |
Safety information for 5-METHYL-2,3-HEXANEDIONE
| Signal word | Warning |
| Pictogram(s) |
 Flame Flammables GHS02 |
| GHS Hazard Statements |
H226:Flammable liquids |
| 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. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P370+P378:In case of fire: Use … for extinction. P403+P235:Store in a well-ventilated place. Keep cool. P501:Dispose of contents/container to..… |
Computed Descriptors for 5-METHYL-2,3-HEXANEDIONE
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