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| Methyl butyrate1 | |
|---|---|
 |
|
| IUPAC name | Methyl butanoate |
| Identifiers | |
| CAS number | 623-42-7 |
| RTECS number | ET5500000 |
| SMILES |
|
| Properties | |
| Molecular formula | C5H10O2 |
| Molar mass | 102.13 g/mol |
| Appearance | Colourless liquid |
| Density | 898 kg/m³ |
| Melting point |
-95 °C (178K) |
| Boiling point |
102 °C (375K) |
| Solubility in water | 1.5 g/100 mL (22 °C) |
| Refractive index (nD) | 1.385 |
| Hazards | |
| NFPA 704 |
 3
1
0
|
| Flash point | 12 °C |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references |
|
Methyl butyrate, also known under the systematic name methyl butanoate, is the methyl ester of butyric acid. As with most esters, it has a fruity odour in this case resembling apples or pineapples. At room temperature, it is a colourless liquid with a low solubility in water, upon which it floats to form an oily layer. Although it is flammable, it has a relatively low vapour pressure (40mm Hg at 30OC) so can be safely handled at room temperature without special safety precautions.2
It is present in small amounts in several plant products, most noticeably pineapple oil. It can be produced by distillation from essential oils of vegetable origin, but is also manufactured on a small scale for use in perfumes3 and as a food flavouring, as well as being a component of biodiesel.4
References
- ^ Merck Index, 13th Edition
- ^ Aldrich Chemicals Handbook, Sigma-Aldrich Company, Milwaukee, (2007)
- ^ Use of methyl butyrate as an additive in perfume
- ^ Methyl butyrate as a component of biodiesel
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Wikipedia content modification information:
- This page was last modified on 14 October 2008, at 19:45.
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