Orientin

Orientin is a flavone, a chemical flavonoid-like compound. It is the 8-C glucoside of luteolin.

Orientin

Names
IUPAC name 8-(β-D-Glucopyranosyl)-3′,4′,5,7-tetrahydroxyflavone
Systematic IUPAC name 2-(3,4-Dihydroxyphenyl)-5,7-dihydroxy-8-[(2S,3R,4R,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]-4H-1-benzopyran-4-one
Other names Lutexin, Luteolin-8-C-glucoside
Identifiers
CAS Number	28608-75-5 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:7781 N
ChEMBL	ChEMBL239559 N
ChemSpider	4444994 N
ECHA InfoCard	100.110.907
KEGG	C10114 Y
PubChem CID	5281675
UNII	IAX93XCW6C Y
CompTox Dashboard (EPA)	DTXSID60182790
InChI InChI=1S/C21H20O11/c22-6-14-17(28)18(29)19(30)21(32-14)16-11(26)4-10(25)15-12(27)5-13(31-20(15)16)7-1-2-8(23)9(24)3-7/h1-5,14,17-19,21-26,28-30H,6H2/t14-,17-,18+,19-,21+/m1/s1 Key: PLAPMLGJVGLZOV-VPRICQMDSA-N
SMILES C1(=C2C(=C(C=C1O)O)C(=O)C=C(O2)C3=CC=C(O)C(=C3)O)C4OC(CO)C(C(C4O)O)O
Properties
Chemical formula	C21H20O11
Molar mass	448.38 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

Natural occurrences

Orientin is found in Adonis vernalis, in Anadenanthera colubrina and Anadenanthera peregrina, and in the Phyllostachys nigra bamboo leaves^[1]

In food

Orientin is also reported in the passion flower,^[2] the Açaí palm, buckwheat sprouts,^[3] and in millets.^[4]

Identification

The identification of orientin has been reported widely. Its identification using mass spectrometry is established.^[5]

See also

Isoorientin (or homoorientin) is the luteolin-6-C-glucoside.