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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 IDHMDB0030545
Secondary Accession Numbers
  • HMDB30545
Metabolite Identification
Common Name5-Hydroxy-7,8-dimethoxyflavonol
Description5-Hydroxy-7,8-dimethoxyflavonol, also known as gnaphaliin b, 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, 5-hydroxy-7,8-dimethoxyflavonol is considered to be a flavonoid. Based on a literature review very few articles have been published on 5-Hydroxy-7,8-dimethoxyflavonol.
Structure
Data?1563862002
Synonyms
ValueSource
3,5-Dihydroxy-7,8-dimethoxy-2-phenyl-4H-1-benzopyran-4-oneHMDB
3,5-Dihydroxy-7,8-dimethoxy-2-phenyl-chromen-4-oneHMDB
3,5-Dihydroxy-7,8-dimethoxyflavoneHMDB
Gnaphaliin bHMDB
Chemical FormulaC17H14O6
Average Molecular Weight314.2895
Monoisotopic Molecular Weight314.07903818
IUPAC Name3,5-dihydroxy-7,8-dimethoxy-2-phenyl-4H-chromen-4-one
Traditional Name3,5-dihydroxy-7,8-dimethoxy-2-phenylchromen-4-one
CAS Registry Number22399-73-1
SMILES
COC1=C(OC)C2=C(C(O)=C1)C(=O)C(O)=C(O2)C1=CC=CC=C1
InChI Identifier
InChI=1S/C17H14O6/c1-21-11-8-10(18)12-13(19)14(20)15(9-6-4-3-5-7-9)23-17(12)16(11)22-2/h3-8,18,20H,1-2H3
InChI KeyCILMBWBPHLLNEH-UHFFFAOYSA-N
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
  • 7-methoxyflavonoid-skeleton
  • 3-hydroxyflavone
  • 8-methoxyflavonoid-skeleton
  • 3-hydroxyflavonoid
  • 5-hydroxyflavonoid
  • Hydroxyflavonoid
  • Chromone
  • Benzopyran
  • 1-benzopyran
  • Anisole
  • 1-hydroxy-2-unsubstituted benzenoid
  • Alkyl aryl ether
  • Pyranone
  • Monocyclic benzene moiety
  • Benzenoid
  • Pyran
  • Vinylogous acid
  • Heteroaromatic compound
  • 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 Point204 - 205 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility89.93 mg/L @ 25 °C (est)The Good Scents Company Information System
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.086 g/LALOGPS
logP2.57ALOGPS
logP2.75ChemAxon
logS-3.6ALOGPS
pKa (Strongest Acidic)8.51ChemAxon
pKa (Strongest Basic)-3.9ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count6ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area85.22 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity83.85 m³·mol⁻¹ChemAxon
Polarizability31.41 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]+173.29431661259
DarkChem[M-H]-173.89731661259
DeepCCS[M+H]+174.45530932474
DeepCCS[M-H]-172.01430932474
DeepCCS[M-2H]-206.38830932474
DeepCCS[M+Na]+182.41230932474
AllCCS[M+H]+171.732859911
AllCCS[M+H-H2O]+168.132859911
AllCCS[M+NH4]+175.132859911
AllCCS[M+Na]+176.032859911
AllCCS[M-H]-172.932859911
AllCCS[M+Na-2H]-172.232859911
AllCCS[M+HCOO]-171.632859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
5-Hydroxy-7,8-dimethoxyflavonolCOC1=C(OC)C2=C(C(O)=C1)C(=O)C(O)=C(O2)C1=CC=CC=C14081.8Standard polar33892256
5-Hydroxy-7,8-dimethoxyflavonolCOC1=C(OC)C2=C(C(O)=C1)C(=O)C(O)=C(O2)C1=CC=CC=C12743.2Standard non polar33892256
5-Hydroxy-7,8-dimethoxyflavonolCOC1=C(OC)C2=C(C(O)=C1)C(=O)C(O)=C(O2)C1=CC=CC=C12869.9Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
5-Hydroxy-7,8-dimethoxyflavonol,1TMS,isomer #1COC1=CC(O[Si](C)(C)C)=C2C(=O)C(O)=C(C3=CC=CC=C3)OC2=C1OC2929.2Semi standard non polar33892256
5-Hydroxy-7,8-dimethoxyflavonol,1TMS,isomer #2COC1=CC(O)=C2C(=O)C(O[Si](C)(C)C)=C(C3=CC=CC=C3)OC2=C1OC2852.6Semi standard non polar33892256
5-Hydroxy-7,8-dimethoxyflavonol,2TMS,isomer #1COC1=CC(O[Si](C)(C)C)=C2C(=O)C(O[Si](C)(C)C)=C(C3=CC=CC=C3)OC2=C1OC2853.0Semi standard non polar33892256
5-Hydroxy-7,8-dimethoxyflavonol,1TBDMS,isomer #1COC1=CC(O[Si](C)(C)C(C)(C)C)=C2C(=O)C(O)=C(C3=CC=CC=C3)OC2=C1OC3167.6Semi standard non polar33892256
5-Hydroxy-7,8-dimethoxyflavonol,1TBDMS,isomer #2COC1=CC(O)=C2C(=O)C(O[Si](C)(C)C(C)(C)C)=C(C3=CC=CC=C3)OC2=C1OC3099.8Semi standard non polar33892256
5-Hydroxy-7,8-dimethoxyflavonol,2TBDMS,isomer #1COC1=CC(O[Si](C)(C)C(C)(C)C)=C2C(=O)C(O[Si](C)(C)C(C)(C)C)=C(C3=CC=CC=C3)OC2=C1OC3294.6Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 5-Hydroxy-7,8-dimethoxyflavonol GC-MS (Non-derivatized) - 70eV, Positivesplash10-001s-1490000000-1f179e6c84ce6d463c3f2017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 5-Hydroxy-7,8-dimethoxyflavonol GC-MS (2 TMS) - 70eV, Positivesplash10-0006-3435900000-2dd558e04e66fa916ade2017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 5-Hydroxy-7,8-dimethoxyflavonol 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 - 5-Hydroxy-7,8-dimethoxyflavonol 10V, Positive-QTOFsplash10-014i-0029000000-cde69a1055b07ab930502016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Hydroxy-7,8-dimethoxyflavonol 20V, Positive-QTOFsplash10-014i-0059000000-4b55c0d1a4aed58c53c22016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Hydroxy-7,8-dimethoxyflavonol 40V, Positive-QTOFsplash10-0a4i-2950000000-16418d3b71cc0f9e94622016-06-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Hydroxy-7,8-dimethoxyflavonol 10V, Negative-QTOFsplash10-03di-0009000000-64951d820e902ac849d62016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Hydroxy-7,8-dimethoxyflavonol 20V, Negative-QTOFsplash10-03di-0189000000-893b6b163fb7b0b971da2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Hydroxy-7,8-dimethoxyflavonol 40V, Negative-QTOFsplash10-00vm-3790000000-3e5b586ff20ef5c1ffd62016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Hydroxy-7,8-dimethoxyflavonol 10V, Positive-QTOFsplash10-014i-0009000000-2ba875095a8aafa31ef72021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Hydroxy-7,8-dimethoxyflavonol 20V, Positive-QTOFsplash10-014i-0009000000-7e4c8cadd2216a9c46932021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Hydroxy-7,8-dimethoxyflavonol 40V, Positive-QTOFsplash10-00kb-2913000000-367d47607c2a0771a63d2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Hydroxy-7,8-dimethoxyflavonol 10V, Negative-QTOFsplash10-03di-0009000000-9ce29a257648c8c7a9232021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Hydroxy-7,8-dimethoxyflavonol 20V, Negative-QTOFsplash10-03di-0329000000-0d78579ff4c33000c5322021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 5-Hydroxy-7,8-dimethoxyflavonol 40V, Negative-QTOFsplash10-00wa-4921000000-6edae48ab0547b6922d72021-09-24Wishart 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 IDFDB002419
KNApSAcK IDC00004557
Chemspider ID4590716
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound5491798
PDB IDNot Available
ChEBI ID664034
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1820891
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.. .