Astragalin

Astragalin
Names
	IUPAC name 3-(β-D-Glucopyranosyloxy)-4′,5,7-trihydroxyflavone
	Systematic IUPAC name 5,7-Dihydroxy-2-(4-hydroxyphenyl)-3-{[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy}-4H-1-benzopyran-4-one
	Other names Astragaline; asragalin; kaempferol-3-glucoside; Kaempferol 3-glucoside; Kaempferol 3-O-glucoside; Kaempferol-3-O-glucoside; Kaempferol-3-D-glucoside; Kaempferol-3-beta-monoglucoside; Kaempferol 3-O-β-D-glucopyranoside
Identifiers
CAS Number	480-10-4 ;
3D model (JSmol)	Interactive image;
Beilstein Reference	100568
ChEBI	CHEBI:30200 ;
ChEMBL	ChEMBL453290 ;
ChemSpider	4445311 ;
ECHA InfoCard	100.128.596
KEGG	C12249 ;
PubChem CID	5282102;
UNII	APM8UQ3Z9O ;
CompTox Dashboard (EPA)	DTXSID801017739 ;
	InChI InChI=1S/C21H20O11/c22-7-13-15(26)17(28)18(29)21(31-13)32-20-16(27)14-11(25)5-10(24)6-12(14)30-19(20)8-1-3-9(23)4-2-8/h1-6,13,15,17-18,21-26,28-29H,7H2/t13-,15-,17+,18-,21+/m1/s1 Key: JPUKWEQWGBDDQB-QSOFNFLRSA-N ; InChI=1/C21H20O11/c22-7-13-15(26)17(28)18(29)21(31-13)32-20-16(27)14-11(25)5-10(24)6-12(14)30-19(20)8-1-3-9(23)4-2-8/h1-6,13,15,17-18,21-26,28-29H,7H2/t13-,15-,17+,18-,21+/m1/s1 Key: JPUKWEQWGBDDQB-QSOFNFLRBV;
	SMILES O=C2C(\O[C@@H]1O[C@@H]([C@@H](O)[C@H](O)[C@H]1O)CO)=C(/Oc3cc(O)cc(O)c23)c4ccc(O)cc4;
Properties
Chemical formula	C21H20O11
Molar mass	448.380 g·mol−1
Density	1.791 g/mL
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Astragalin is a naturally occurring flavanoid chemical compound with a yellow colour. It was first isolated from Astragalus sinicus after which it is named.

It can be isolated from Phytolacca americana (the American pokeweed) or in the methanolic extract of fronds of the fern Phegopteris connectilis. It is also found in wine.

Astragalin is a 3-O-glucoside of kaempferol.