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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 17:37:32 UTC
Update Date2022-03-07 02:52:35 UTC
HMDB IDHMDB0030546
Secondary Accession Numbers
  • HMDB30546
Metabolite Identification
Common Name4',5-Dihydroxy-7,8-dimethoxyflavone
Description4',5-Dihydroxy-7,8-dimethoxyflavone belongs to the class of organic compounds known as 8-o-methylated flavonoids. These are flavonoids with methoxy groups attached to the C8 atom of the flavonoid backbone. Thus, 4',5-dihydroxy-7,8-dimethoxyflavone is considered to be a flavonoid. 4',5-Dihydroxy-7,8-dimethoxyflavone has been detected, but not quantified in, citrus and mandarin orange (clementine, tangerine). This could make 4',5-dihydroxy-7,8-dimethoxyflavone a potential biomarker for the consumption of these foods. Based on a literature review very few articles have been published on 4',5-Dihydroxy-7,8-dimethoxyflavone.
Structure
Data?1563862002
Synonyms
ValueSource
Isoscutellarein 7,8-dimethyl etherHMDB
Chemical FormulaC17H14O6
Average Molecular Weight314.2895
Monoisotopic Molecular Weight314.07903818
IUPAC Name5-hydroxy-2-(4-hydroxyphenyl)-7,8-dimethoxy-4H-chromen-4-one
Traditional Name5-hydroxy-2-(4-hydroxyphenyl)-7,8-dimethoxychromen-4-one
CAS Registry Number6608-33-9
SMILES
COC1=C(OC)C2=C(C(O)=C1)C(=O)C=C(O2)C1=CC=C(O)C=C1
InChI Identifier
InChI=1S/C17H14O6/c1-21-14-8-12(20)15-11(19)7-13(23-17(15)16(14)22-2)9-3-5-10(18)6-4-9/h3-8,18,20H,1-2H3
InChI KeyFTFPXINQVCVDEY-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as 8-o-methylated flavonoids. These are flavonoids with methoxy groups attached to the C8 atom of the flavonoid backbone.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassFlavonoids
Sub ClassO-methylated flavonoids
Direct Parent8-O-methylated flavonoids
Alternative Parents
Substituents
  • 7-methoxyflavonoid-skeleton
  • 8-methoxyflavonoid-skeleton
  • 4'-hydroxyflavonoid
  • 5-hydroxyflavonoid
  • Flavone
  • Hydroxyflavonoid
  • Chromone
  • Benzopyran
  • 1-benzopyran
  • Anisole
  • 1-hydroxy-2-unsubstituted benzenoid
  • Pyranone
  • Phenol
  • Alkyl aryl ether
  • Pyran
  • Monocyclic benzene moiety
  • Benzenoid
  • Heteroaromatic compound
  • Vinylogous acid
  • Ether
  • Organoheterocyclic compound
  • Oxacycle
  • Organic oxygen compound
  • Organooxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
Physiological effectNot Available
Disposition
ProcessNot Available
RoleNot Available
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting Point292 - 294 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.043 g/LALOGPS
logP3.19ALOGPS
logP2.69ChemAxon
logS-3.9ALOGPS
pKa (Strongest Acidic)8.56ChemAxon
pKa (Strongest Basic)-4.6ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count6ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area85.22 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity83.86 m³·mol⁻¹ChemAxon
Polarizability31.6 ųChemAxon
Number of Rings3ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Predicted Chromatographic Properties

Predicted Collision Cross Sections

PredictorAdduct TypeCCS Value (Å2)Reference
DarkChem[M+H]+174.07431661259
DarkChem[M-H]-175.33931661259
DeepCCS[M+H]+177.36830932474
DeepCCS[M-H]-174.9430932474
DeepCCS[M-2H]-209.30130932474
DeepCCS[M+Na]+185.0330932474
AllCCS[M+H]+172.032859911
AllCCS[M+H-H2O]+168.432859911
AllCCS[M+NH4]+175.432859911
AllCCS[M+Na]+176.432859911
AllCCS[M-H]-173.232859911
AllCCS[M+Na-2H]-172.532859911
AllCCS[M+HCOO]-171.932859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
4',5-Dihydroxy-7,8-dimethoxyflavoneCOC1=C(OC)C2=C(C(O)=C1)C(=O)C=C(O2)C1=CC=C(O)C=C14657.0Standard polar33892256
4',5-Dihydroxy-7,8-dimethoxyflavoneCOC1=C(OC)C2=C(C(O)=C1)C(=O)C=C(O2)C1=CC=C(O)C=C13099.0Standard non polar33892256
4',5-Dihydroxy-7,8-dimethoxyflavoneCOC1=C(OC)C2=C(C(O)=C1)C(=O)C=C(O2)C1=CC=C(O)C=C13219.2Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
4',5-Dihydroxy-7,8-dimethoxyflavone,1TMS,isomer #1COC1=CC(O[Si](C)(C)C)=C2C(=O)C=C(C3=CC=C(O)C=C3)OC2=C1OC3123.9Semi standard non polar33892256
4',5-Dihydroxy-7,8-dimethoxyflavone,1TMS,isomer #2COC1=CC(O)=C2C(=O)C=C(C3=CC=C(O[Si](C)(C)C)C=C3)OC2=C1OC3160.1Semi standard non polar33892256
4',5-Dihydroxy-7,8-dimethoxyflavone,2TMS,isomer #1COC1=CC(O[Si](C)(C)C)=C2C(=O)C=C(C3=CC=C(O[Si](C)(C)C)C=C3)OC2=C1OC3177.6Semi standard non polar33892256
4',5-Dihydroxy-7,8-dimethoxyflavone,1TBDMS,isomer #1COC1=CC(O[Si](C)(C)C(C)(C)C)=C2C(=O)C=C(C3=CC=C(O)C=C3)OC2=C1OC3354.8Semi standard non polar33892256
4',5-Dihydroxy-7,8-dimethoxyflavone,1TBDMS,isomer #2COC1=CC(O)=C2C(=O)C=C(C3=CC=C(O[Si](C)(C)C(C)(C)C)C=C3)OC2=C1OC3404.1Semi standard non polar33892256
4',5-Dihydroxy-7,8-dimethoxyflavone,2TBDMS,isomer #1COC1=CC(O[Si](C)(C)C(C)(C)C)=C2C(=O)C=C(C3=CC=C(O[Si](C)(C)C(C)(C)C)C=C3)OC2=C1OC3653.2Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 4',5-Dihydroxy-7,8-dimethoxyflavone GC-MS (Non-derivatized) - 70eV, Positivesplash10-02a2-0491000000-5eaf5421434abb077a832017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 4',5-Dihydroxy-7,8-dimethoxyflavone GC-MS (2 TMS) - 70eV, Positivesplash10-006x-3225900000-b6664a72777f869d495c2017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 4',5-Dihydroxy-7,8-dimethoxyflavone GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7,8-dimethoxyflavone 10V, Positive-QTOFsplash10-014i-0009000000-51bafccd4307730f7fb32016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7,8-dimethoxyflavone 20V, Positive-QTOFsplash10-014i-0029000000-8bc75fafeec83c8542d02016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7,8-dimethoxyflavone 40V, Positive-QTOFsplash10-05r1-2790000000-0de1678c499c75e26b802016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7,8-dimethoxyflavone 10V, Negative-QTOFsplash10-03di-0009000000-23ddf508777c51d2b74f2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7,8-dimethoxyflavone 20V, Negative-QTOFsplash10-03di-0039000000-1baec9a51bde507ca1a62016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7,8-dimethoxyflavone 40V, Negative-QTOFsplash10-014j-1490000000-db13a43c2f36625c89602016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7,8-dimethoxyflavone 10V, Negative-QTOFsplash10-03di-0009000000-37aa871ad4ede2969f522021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7,8-dimethoxyflavone 20V, Negative-QTOFsplash10-03ka-0097000000-14d65b8127a3c15885fb2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7,8-dimethoxyflavone 10V, Positive-QTOFsplash10-014i-0009000000-2ba875095a8aafa31ef72021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7,8-dimethoxyflavone 20V, Positive-QTOFsplash10-014i-0009000000-edb8a308e20d187ae6dd2021-09-22Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 4',5-Dihydroxy-7,8-dimethoxyflavone 40V, Positive-QTOFsplash10-0fkc-0291000000-4c958ebedffc2507ee8c2021-09-22Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Membrane
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Pathways
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDFDB002420
KNApSAcK IDC00003852
Chemspider ID24844228
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound14585506
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. (). Yannai, Shmuel. (2004) Dictionary of food compounds with CD-ROM: Additives, flavors, and ingredients. Boca Raton: Chapman & Hall/CRC.. .