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Record Information
Version2.0
Created at2021-06-22 17:18:21 UTC
Updated at2021-06-22 17:18:21 UTC
NP-MRD IDNP0043802
Secondary Accession Numbers
  • NP0044790
Natural Product Identification
Common Name3,5,3'-Trihydroxy-7,4'-dimethoxyflavone
DescriptionOmbuin belongs to the class of organic compounds known as flavonols. Flavonols are compounds that contain a flavone (2-phenyl-1-benzopyran-4-one) backbone carrying a hydroxyl group at the 3-position. Thus, ombuin is considered to be a flavonoid. Ombuin is a secondary metabolite. Secondary metabolites are metabolically or physiologically non-essential metabolites that may serve a role as defense or signalling molecules. In some cases they are simply molecules that arise from the incomplete metabolism of other secondary metabolites. 3,5,3'-Trihydroxy-7,4'-dimethoxyflavone is found in Ageratina areolaris, Physalis alkekengi var. franchetii , Caesalpinia sappan , Clausena dunniana, Gynostemon pentaphyllum, Amomum koenigii, Miliusa balansae, Morinda morindoides and Senna septemtrionalis. 3,5,3'-Trihydroxy-7,4'-dimethoxyflavone was first documented in 2008 (PMID: 18384188). Based on a literature review a small amount of articles have been published on ombuin (PMID: 22673832) (PMID: 23186307).
Structure
Thumb
Synonyms
ValueSource
3,5-Dihydroxy-2-(3-hydroxy-4-methoxyphenyl)-7-methoxy-4H-1-benzopyran-4-oneChEBI
4',7-Dimethoxy-3,3',5-trihydroxyflavoneChEBI
7,4'-Di-O-methylquercetinChEBI
OmbuineMeSH
Chemical FormulaC17H14O7
Average Mass330.2920 Da
Monoisotopic Mass330.07395 Da
IUPAC Name3,5-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)-7-methoxy-4H-chromen-4-one
Traditional Nameombuin
CAS Registry NumberNot Available
SMILES
COC1=CC(O)=C2C(=O)C(O)=C(OC2=C1)C1=CC(O)=C(OC)C=C1
InChI Identifier
InChI=1S/C17H14O7/c1-22-9-6-11(19)14-13(7-9)24-17(16(21)15(14)20)8-3-4-12(23-2)10(18)5-8/h3-7,18-19,21H,1-2H3
InChI KeyBWORNNDZQGOKBY-UHFFFAOYSA-N
Experimental Spectra
Predicted Spectra
Chemical Shift Submissions
Not Available
Species
Species of Origin
Chemical Taxonomy
Description Belongs to the class of organic compounds known as flavonols. Flavonols are compounds that contain a flavone (2-phenyl-1-benzopyran-4-one) backbone carrying a hydroxyl group at the 3-position.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassFlavonoids
Sub ClassFlavones
Direct ParentFlavonols
Alternative Parents
Substituents
  • 4p-methoxyflavonoid-skeleton
  • 7-methoxyflavonoid-skeleton
  • 3-hydroxyflavone
  • 3'-hydroxyflavonoid
  • 3-hydroxyflavonoid
  • 5-hydroxyflavonoid
  • Hydroxyflavonoid
  • Chromone
  • Benzopyran
  • Methoxyphenol
  • 1-benzopyran
  • Phenoxy compound
  • Anisole
  • Methoxybenzene
  • Phenol ether
  • Phenol
  • 1-hydroxy-2-unsubstituted benzenoid
  • Pyranone
  • 1-hydroxy-4-unsubstituted benzenoid
  • Alkyl aryl ether
  • Benzenoid
  • Pyran
  • Monocyclic benzene moiety
  • Vinylogous acid
  • Heteroaromatic compound
  • Organoheterocyclic compound
  • Oxacycle
  • Ether
  • Organic oxygen compound
  • Organic oxide
  • Hydrocarbon derivative
  • Organooxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
logP2.29ALOGPS
logP2.45ChemAxon
logS-3.6ALOGPS
pKa (Strongest Acidic)7.15ChemAxon
pKa (Strongest Basic)-3.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area105.45 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity85.83 m³·mol⁻¹ChemAxon
Polarizability32.69 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
HMDB IDNot Available
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FoodDB IDNot Available
KNApSAcK IDC00004643
Chemspider ID4478412
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkOmbuin
METLIN IDNot Available
PubChem Compound5320287
PDB IDNot Available
ChEBI ID67493
Good Scents IDNot Available
References
General References
  1. Rao YK, Fang SH, Tzeng YM: Antiinflammatory activities of flavonoids and a triterpene caffeate isolated from Bauhinia variegata. Phytother Res. 2008 Jul;22(7):957-62. doi: 10.1002/ptr.2448. [PubMed:18384188 ]
  2. Grabher P, Durieu E, Kouloura E, Halabalaki M, Skaltsounis LA, Meijer L, Hamburger M, Potterat O: Library-based discovery of DYRK1A/CLK1 inhibitors from natural product extracts. Planta Med. 2012 Jun;78(10):951-6. doi: 10.1055/s-0031-1298625. Epub 2012 Jun 6. [PubMed:22673832 ]
  3. Zhang ML, Irwin D, Li XN, Sauriol F, Shi XW, Wang YF, Huo CH, Li LG, Gu YC, Shi QW: PPARgamma agonist from Chromolaena odorata. J Nat Prod. 2012 Dec 28;75(12):2076-81. doi: 10.1021/np300386d. Epub 2012 Nov 27. [PubMed:23186307 ]
  4. Hui Dong, Yu-Lin Gou, Shu-Geng Cao, Shao-Xing Chen, Keng-Yeow Sim, Swee-Hock Goh, R. Manjunatha Kini (1999). Hui Dong, Yu-Lin Gou, Shu-Geng Cao, Shao-Xing Chen, Keng-Yeow Sim, Swee-Hock Goh, R. Manjunatha Kini. Eicosenones and methylated flavonols from Amomumkoenigii. Phytochemistry Volume 50, Issue 5, 10 March 1999, Pages 899-902 DOI: 10.1016/S0031-9422(98)00622-0. Phytochemistry.