Butyric acid isobutyl ester
Structural formula | |||||||||||||||||||
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General | |||||||||||||||||||
Surname | Butyric acid isobutyl ester | ||||||||||||||||||
other names |
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Molecular formula | C 8 H 16 O 2 | ||||||||||||||||||
Brief description |
colorless liquid |
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properties | |||||||||||||||||||
Molar mass | 144.21 g mol −1 | ||||||||||||||||||
Physical state |
liquid |
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density |
0.87 g cm −3 |
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boiling point |
157 ° C |
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Vapor pressure |
3.9 hPa (20 ° C) |
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solubility |
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Refractive index |
1.403 (20 ° C) |
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safety instructions | |||||||||||||||||||
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Toxicological data |
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As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C |
Butyric acid isobutyl ester is a chemical compound from the group of carboxylic acid esters .
Occurrence
Butyric acid isobutyl ester is one of the volatile compounds that are formed when bananas are ripened. It is also found in jackfruit and was also found in apricots, apples, strawberries, blue and Gruyere cheese, cognac, port, rum, honey, olives, passion fruits, plums, beans, mushrooms, mangoes, apple brandy, quinces, cherimoya, kiwi fruit and den Shells of the Chinese quince demonstrated.
Extraction and presentation
Butyric acid isobutyl ester can be obtained by reacting butyric acid with isobutyl alcohol in the presence of sulfuric acid or with the help of an enzyme .
properties
Butyric acid isobutyl ester is a colorless liquid that is sparingly soluble in water. The compound has a fruity, ethereal smell reminiscent of apples or pineapple , and a sweet taste reminiscent of rum .
use
Butyric acid isobutyl ester is used as a flavoring for food .
Individual evidence
- ↑ a b c d e f g h i j entry to Buttersäureisobutylester in the GESTIS database of IFA , retrieved on December 30, 2018(JavaScript required) .
- ↑ a b c David R. Lide: CRC Handbook of Chemistry and Physics A Ready-reference Book of Chemical and Physical Data . CRC Press, 1995, ISBN 978-0-8493-0595-5 , pp. 338 ( limited preview in Google Book search).
- ↑ a b c d George A. Burdock: Fenaroli's Handbook of Flavor Ingredients . CRC Press, 2016, ISBN 978-1-4200-9086-4 , pp. 985 ( limited preview in Google Book Search).
- ↑ a b c data sheet isobutyl butyrate, ≥98%, FCC, FG from Sigma-Aldrich , accessed on December 30, 2018 ( PDF ).
- ↑ K. Herrmann: Exotic Food Ingredients and Use, For biologists, chemists, medical professionals and hobby cooks . Springer-Verlag, 2013, ISBN 978-3-642-96747-4 , pp. 59 ( limited preview in Google Book search).