Palmitic acid methyl ester

from Wikipedia, the free encyclopedia
Structural formula
Structural formula of methyl palmitate
General
Surname Palmitic acid methyl ester
other names
  • Methyl palmitate
  • Methyl hexadecanoate
  • Methyl hexadecanoate
Molecular formula C 17 H 34 O 2
Brief description

Hardly flammable waxy mass of white solid

External identifiers / databases
CAS number 112-39-0
EC number 203-966-3
ECHA InfoCard 100.003.606
PubChem 8181
Wikidata Q16676086
properties
Molar mass 270.46 g mol −1
Physical state

firmly

density

0.852 g cm −3

Melting point

30 ° C

boiling point
  • 417 ° C
  • 185 ° C (13 hPa)
Vapor pressure

<0.01 hPa (20 ° C)

solubility
  • practically insoluble in water
  • soluble in ethanol, chloroform, dimethyl sulfoxide and dimethylformamide
Refractive index

1.4512 (20 ° C)

safety instructions
GHS labeling of hazardous substances
no GHS pictograms
H and P phrases H: no H-phrases
P: no P-phrases
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

  1. ↑ 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) .
  2. ↑ Data sheet of methyl palmitate (PDF) from Merck , accessed on December 7, 2018.
  3. ↑ a b c d data sheet Methyl palmitate, 97% at AlfaAesar, accessed on December 7, 2018 ( PDF )(JavaScript required) .
  4. ↑ 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
  5. ↑ Apidologie, Springer Verlag, 1994, 25 (5), pp. 507–508 Varroa females in the biotest: host identification of bee larvae and adult bees
  6. ↑ 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).
  7. ↑ 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).
  8. ↑ Entry on methyl palmitate in the Hazardous Substances Data Bank , accessed on December 7, 2018.
  9. ↑ a b Entry on methyl palmitate. In: Römpp Online . Georg Thieme Verlag, accessed December 7, 2018.