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Combretol

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Combretol
Chemical structure of combretol
Names
IUPAC name 5-Hydroxy-3,3′,4′,5′,7-pentamethoxyflavone
Preferred IUPAC name 5-Hydroxy-3,7-dimethoxy-2-(3,4,5-trimethoxyphenyl)-4H-1-benzopyran-4-one
Other names 3,7,3',4',5'-pentamethylmyricetin
Identifiers
CAS Number
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
PubChem CID
UNII
CompTox Dashboard (EPA)
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,1-5H3Key: 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,1-5H3Key: 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 , 100 kPa). ☒N verify (what is  ?) Infobox references
Chemical compound

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 and from Rhodomyrtus tomentosa.

References

  1. "KNApSAcK Metabolite Information - C00004777". www.knapsackfamily.com.
  2. Combretol from Combretum quadrangulare. Stang Mongkolsuk, F. M. Dean and L. E. Houghton, J. Chem. Soc. C, 1966, page 125, doi:10.1039/J39660000125
  3. 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
Flavonols and their conjugates
Backbone
Aglycones
Flavonols
Aglycones
Conjugates
Glycosides of herbacetin
Glycosides of kaempferol
Glycosides of myricetin
Conjugates of quercetin
Sulfates
Glycosides
O-Methylated flavonols
Aglycones
Glycosides
of isorhamnetin
other
Derivative flavonols
Aglycones
Glycosides
Pyranoflavonols
Aglycones
Furanoflavonols
Aglycones
Glycosides
Semisynthetic
Glycosides


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