Palmitic acid methyl ester
Structural formula | ||||||||||||||||
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General | ||||||||||||||||
Surname | Palmitic acid methyl ester | |||||||||||||||
other names |
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Molecular formula | C 17 H 34 O 2 | |||||||||||||||
Brief description |
Hardly flammable waxy mass of white solid |
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External identifiers / databases | ||||||||||||||||
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properties | ||||||||||||||||
Molar mass | 270.46 g mol −1 | |||||||||||||||
Physical state |
firmly |
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density |
0.852 g cm −3 |
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Melting point |
30 ° C |
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boiling point |
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Vapor pressure |
<0.01 hPa (20 ° C) |
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solubility |
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Refractive index |
1.4512 (20 ° C) |
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safety instructions | ||||||||||||||||
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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 |
Palmitic acid methyl ester is a chemical compound from the group of fatty acid esters .
Occurrence
Palmitic acid methyl ester is released by bee larvae (especially drone larvae ). However, a kairomone effect of the compound could not be confirmed. Methyl palmitate has also been detected in plants such as Canarium luzonicum and Saururus cernuus .
Extraction and presentation
Palmitic acid methyl ester can be obtained by esterification of palmitic acid with methanol or alcoholysis of palm oil plus vacuum distillation.
properties
Palmitic acid methyl ester is a flammable, hardly flammable, waxy, white solid that is practically insoluble in water. The compound has anti-inflammatory and anti-fibrotic potential and prevents bleomycin- induced pneumonia and fibrosis in rats. In low concentrations it has a stimulating effect on the growth of plants.
use
Palmitic acid methyl ester is used in the manufacture of detergents, emulsifiers, wetting agents, stabilizers, resins, lubricants, plasticizers and animal feed. It also serves as a reference substance in gas chromatography and a consistency regulator in cosmetic preparations.
Individual evidence
- ↑ a b c d e f g h i j Entry on methyl palmitate in the GESTIS substance database of the IFA , accessed on December 7, 2018(JavaScript required) .
- ↑ Data sheet of methyl palmitate (PDF) from Merck , accessed on December 7, 2018.
- ↑ a b c d data sheet Methyl palmitate, 97% at AlfaAesar, accessed on December 7, 2018 ( PDF )(JavaScript required) .
- ↑ Dissertation Jens Radtke: Influence of brood removal in the honey bee Apis mellifera on the performance of the colonies and their parasitization with Varroa destructor , April 19, 2010
- ↑ Apidologie, Springer Verlag, 1994, 25 (5), pp. 507–508 Varroa females in the biotest: host identification of bee larvae and adult bees
- ↑ Wolfgang Blaschek, Rudolf Hänsel, Konstantin Keller, Jürgen Reichling, Horst Rimpler, Georg Schneider: Hager's Handbook of Pharmaceutical Practice, Volume 2: Drugs AK . Springer-Verlag, 2013, ISBN 978-3-642-58928-7 , pp. 839 ( limited preview in Google Book search).
- ↑ Paul Heinz List, Ludwig Hörhammer: Chemicals and Drugs Part B: R, S . Springer-Verlag, 2013, ISBN 978-3-642-66377-2 , pp. 299 ( limited preview in Google Book search).
- ↑ Entry on methyl palmitate in the Hazardous Substances Data Bank , accessed on December 7, 2018.
- ↑ a b Entry on methyl palmitate. In: Römpp Online . Georg Thieme Verlag, accessed December 7, 2018.