Sinigrin

Sinigrin
Names
IUPAC name
(Z)-N-[1-(β-D-glucopyranosylsulfanyl)but-3-en-1-ylidene]hydroxylamine-O-sulfonic acid
Systematic IUPAC name
(Z)-N-(1-{[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]sulfanyl}but-3-en-1-ylidene)hydroxylamine-O-sulfonic acid
Other names
Allyl glucosinolate; 2-Propenyl glucosinolate; (1Z)-N-(Sulfooxy)but-3-enimidoyl 1-thio-β-D-glucopyranoside
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
UNII
  • InChI=1S/C10H17NO9S2/c1-2-3-6(11-20-22(16,17)18)21-10-9(15)8(14)7(13)5(4-12)19-10/h2,5,7-10,12-15H,1,3-4H2,(H,16,17,18)/b11-6-/t5-,7-,8+,9-,10+/m1/s1 checkY
    Key: PHZOWSSBXJXFOR-GLVDENFASA-N checkY
  • K+ salt: InChI=1S/C10H17NO9S2.K/c1-2-3-6(11-20-22(16,17)18)21-10-9(15)8(14)7(13)5(4-12)19-10;/h2,5,7-10,12-15H,1,3-4H2,(H,16,17,18);/q;+1/p-1/b11-6-;/t5-,7-,8+,9-,10+;/m1./s1
    Key: QKFAFSGJTMHRRY-FVDOMRANSA-M
  • Sinigrin: C=CC/C(=N/OS(=O)(=O)O)/S[C@H]1[C@@H]([C@H]([C@@H]([C@H](O1)CO)O)O)O
  • K+ salt: C=CC/C(=N/OS(=O)(=O)[O-])/S[C@H]1[C@@H]([C@H]([C@@H]([C@H](O1)CO)O)O)O.[K+]
Properties
C10H17NO9S2
Molar mass 359.36 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Sinigrin or allyl glucosinolate is a glucosinolate that belongs to the family of glucosides found in some plants of the family Brassicaceae such as Brussels sprouts, broccoli, and the seeds of black mustard (Brassica nigra). Whenever sinigrin-containing plant tissue is crushed or otherwise damaged, the enzyme myrosinase degrades sinigrin to a mustard oil (allyl isothiocyanate), which is responsible for the pungent taste of mustard and horseradish.[1] Seeds of white mustard, Sinapis alba, give a less pungent mustard because this species contains a different glucosinolate, sinalbin.

  1. ^ Richard, H. "Arômes alimentaires" (PDF) (in French). Archived from the original (PDF) on 2007-02-14.