Sambunigrin

from Wikipedia, the free encyclopedia
Structural formula
Structure of sambunigrin
General
Surname Sambunigrin
other names
  • L -mandelonitrile- β - D -glucopyranoside
  • ( S ) - O - β - D -glucopyranosylmandelonitrile
  • ( S ) - ( β - D -glucopyranosyloxy) phenylacetonitrile
  • L -prunasin
Molecular formula C 14 H 17 NO 6
Brief description

cyanogenic glycoside

External identifiers / databases
CAS number
  • 99-19-4 [Sambunigrin, ( S ) - (-) - form in the side chain]
  • 138-53-4 [prulaurasin, mixture of diastereomers; ( RS ) form in the side chain]
PubChem 91434
Wikidata Q2217000
properties
Molar mass 295.29 g mol −1
Physical state

firmly

Melting point

151-152 ° C

safety instructions
GHS hazard labeling
no classification available
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Sambunigrin is a cyanogenic glycoside . The stereoisomer configured on the nitrile D is called prunasin , the racemate with this compound is called prulaurasin .

Occurrence

Black elder ( Sambucus nigra )

The glycoside occurs in the leaves, the unripe berries and the seeds of the ripe berries of the black elder , from whose Latin name Sambucus nigra the name of the sambunigrin is derived. But sambunigrin has also been found in apple seeds.

Chemical properties

In the presence of water, the cyanogenic glycoside splits off hydrogen cyanide . When heated, sambunigrin breaks down and thus loses its toxic effect.

The rotation value is −76.3 ° (λ = 598 nm, in ethyl acetate ).

See also

literature

  • Campa, C. et al. (2000): Analysis of cyanogenic glycosides by micellar capillary electrophoresis. J Chromatogr B Biomed Sci Appl. 739 (1), 95-100. PMID 10744317

Individual evidence

  1. a b Entry on Cyanogenic Glycosides. In: Römpp Online . Georg Thieme Verlag, accessed on June 1, 2014.
  2. This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
  3. chemnetbase.com: JDX91-A: JFL71-A  ( page no longer available , search in web archivesInfo: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. , accessed June 25, 2017.@1@ 2Template: Dead Link / ccd.chemnetbase.com