Apigenin

Apigenin^[1]

Names
IUPAC name 4′,5,7-Trihydroxyflavone
Systematic IUPAC name 5,7-Dihydroxy-2-(4-hydroxyphenyl)-4H-1-benzopyran-4-one
Other names Apigenine; Chamomile; Apigenol; Spigenin; Versulin; C.I. Natural Yellow 1
Identifiers
CAS Number	520-36-5 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:18388 Y
ChEMBL	ChEMBL28 Y
ChemSpider	4444100 Y
DrugBank	DB07352 Y
ECHA InfoCard	100.007.540
IUPHAR/BPS	4136
KEGG	C01477 Y
PubChem CID	5280443
UNII	7V515PI7F6 Y
CompTox Dashboard (EPA)	DTXSID6022391
InChI InChI=1S/C15H10O5/c16-9-3-1-8(2-4-9)13-7-12(19)15-11(18)5-10(17)6-14(15)20-13/h1-7,16-18H Y Key: KZNIFHPLKGYRTM-UHFFFAOYSA-N Y InChI=1/C15H10O5/c16-9-3-1-8(2-4-9)13-7-12(19)15-11(18)5-10(17)6-14(15)20-13/h1-7,16-18H Key: KZNIFHPLKGYRTM-UHFFFAOYAX
SMILES O=C\1c3c(O/C(=C/1)c2ccc(O)cc2)cc(O)cc3O
Properties
Chemical formula	C15H10O5
Molar mass	270.240 g·mol−1
Appearance	Yellow crystalline solid
Melting point	345 to 350 °C (653 to 662 °F; 618 to 623 K)
UV-vis (λmax)	267, 296sh, 336 nm in methanol[2]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Apigenin (4′,5,7-trihydroxyflavone), found in many plants, is a natural product belonging to the flavone class that is the aglycone of several naturally occurring glycosides. It is a yellow crystalline solid that has been used to dye wool.