Mesityl oxide
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| Mesityl oxide | |
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| IUPAC name | 4-methylpent-3-en-2-one |
| Other names | Mesityl oxide Isobutenyl methyl ketone Methyl isobutenyl ketone Isopropylidene acetone |
| Identifiers | |
| CAS number | [141-79-7] |
| RTECS number | SB4200000 |
| SMILES | CC(C)=CC(C)=O |
| InChI | 1/C6H10O/c1-5(2)4-6(3)7/h4H,1-3H3 |
| Properties | |
| Molecular formula | C6H10O |
| Molar mass | 98.14 g/mol |
| Density | 0.858 g/cm³ |
| Melting point |
-53 °C |
| Boiling point |
129 °C |
| Solubility in water | good |
| Solubility in other solvents | organic solvents |
| Refractive index (nD) | 1.442 |
| Hazards | |
| Main hazards | flammable |
| R-phrases | 10-20/21/22 |
| S-phrases | 25 |
| Flash point | 87 °F |
| Related compounds | |
| Related compounds | diacetone alcohol acetone, benzylideneacetone |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Mesityl oxide is a ketone with the formula CH3C(O)CH=C(CH3)2. This compound is a colorless, volatile liquid with a strong peppermint odor.
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[edit] Synthesis
It is prepared by the condensation of acetone to give diacetone alcohol, which readily dehydrates to give this compound. This type of reaction is called aldol reaction.
A further condensation yields isophorone, which is also used as solvent.
[edit] Uses
Mesityl oxide is used as a solvent and in the production of methyl isobutyl ketone.
[edit] References
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The references in this article would be clearer with a different or consistent style of citation, footnoting, or external linking. |
- Merck Index, 11th Edition, 5811.
- Organic Syntheses, Coll. Vol. 1, p. 345 (1941)
