Combretol

Combretol is an O-methylated flavonol, a type of flavonoid. It is the 3,7,3',4',5'-O-methylation of myricetin and can be extracted from Combretum quadrangulare[1] and from Rhodomyrtus tomentosa.[2]

Combretol

Names
IUPAC name 5-hydroxy-3,7-dimethoxy-2-(3,4,5-trimethoxyphenyl)chromen-4-one
Other names 5-Hydroxy-3,3',4',5',7-pentamethoxyflavone
Identifiers
3D model (JSmol)	Interactive image
ChemSpider	21131195
PubChem CID	12303802
InChI InChI=1S/C20H20O8/c1-23-11-8-12(21)16-13(9-11)28-18(20(27-5)17(16)22)10-6-14(24-2)19(26-4)15(7-10)25-3/h6-9,21H,1-5H3 Key: SUNUQCQIFHHEOW-UHFFFAOYSA-N InChI=1/C20H20O8/c1-23-11-8-12(21)16-13(9-11)28-18(20(27-5)17(16)22)10-6-14(24-2)19(26-4)15(7-10)25-3/h6-9,21H,1-5H3 Key: SUNUQCQIFHHEOW-UHFFFAOYAT
SMILES COC1=CC(=C2C(=C1)OC(=C(C2=O)OC)C3=CC(=C(C(=C3)OC)OC)OC)O
Properties
Chemical formula	C20H20O8
Molar mass	388.36 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

References

1. Combretol from Combretum quadrangulare. Stang Mongkolsuk, F. M. Dean and L. E. Houghton, J. Chem. Soc. C, 1966, page 125, doi:10.1039/J39660000125
2. 5-Hydroxy-3,3',4',5',7-pentamethoxyflavone (combretol). Dachriyanus, R. Fahmi, M. V. Sargent, B. W. Skelton and A. H. White, Acta Crystallogr. (2004). E60, o86-o88