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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2021-09-23 07:06:08 UTC
Update Date2021-09-23 07:06:08 UTC
HMDB IDHMDB0302154
Secondary Accession NumbersNone
Metabolite Identification
Common NameGardenin B
DescriptionGardenin b, also known as demethyltangeretin or 5-hydroxy-4',6,7,8-tetramethoxyflavone, is a member of the class of compounds known as 8-o-methylated flavonoids. 8-o-methylated flavonoids are flavonoids with methoxy groups attached to the C8 atom of the flavonoid backbone. Thus, gardenin b is considered to be a flavonoid lipid molecule. Gardenin b is practically insoluble (in water) and a very weakly acidic compound (based on its pKa). Gardenin b can be found in mandarin orange (clementine, tangerine), peppermint, sweet basil, and winter savory, which makes gardenin b a potential biomarker for the consumption of these food products.
Structure
Thumb
Synonyms
ValueSource
5-Hydroxy-2-(4-methoxyphenyl)-6,7,8-trimethoxy-4H-1-benzopyran-4-oneChEBI
5-Hydroxy-4',6,7,8-tetramethoxyflavoneChEBI
DemethyltangeretinChEBI
5-DemethyltangeretinMeSH
Chemical FormulaC19H18O7
Average Molecular Weight358.342
Monoisotopic Molecular Weight358.10525293
IUPAC Name5-hydroxy-6,7,8-trimethoxy-2-(4-methoxyphenyl)-4H-chromen-4-one
Traditional Namegardenin B
CAS Registry NumberNot Available
SMILES
COC1=CC=C(C=C1)C1=CC(=O)C2=C(O1)C(OC)=C(OC)C(OC)=C2O
InChI Identifier
InChI=1S/C19H18O7/c1-22-11-7-5-10(6-8-11)13-9-12(20)14-15(21)17(23-2)19(25-4)18(24-3)16(14)26-13/h5-9,21H,1-4H3
InChI KeyLXEVSYZNYDZSOB-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
  • 4p-methoxyflavonoid-skeleton
  • 6-methoxyflavonoid-skeleton
  • 8-methoxyflavonoid-skeleton
  • 7-methoxyflavonoid-skeleton
  • 5-hydroxyflavonoid
  • Flavone
  • Hydroxyflavonoid
  • Chromone
  • Benzopyran
  • 1-benzopyran
  • Phenol ether
  • Anisole
  • Methoxybenzene
  • Phenoxy compound
  • Pyranone
  • Alkyl aryl ether
  • Monocyclic benzene moiety
  • Pyran
  • 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
StateNot Available
Experimental Molecular Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
logP3.07ALOGPS
logP2.68ChemAxon
logS-4.2ALOGPS
pKa (Strongest Acidic)9.66ChemAxon
pKa (Strongest Basic)-4.3ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count7ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area83.45 ŲChemAxon
Rotatable Bond Count5ChemAxon
Refractivity94.8 m³·mol⁻¹ChemAxon
Polarizability36.75 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
AllCCS[M+H]+183.83232859911
AllCCS[M+H-H2O]+180.61232859911
AllCCS[M+Na]+187.66732859911
AllCCS[M+NH4]+186.81232859911
AllCCS[M-H]-186.39832859911
AllCCS[M+Na-2H]-186.10732859911
AllCCS[M+HCOO]-185.93832859911
DeepCCS[M+H]+179.76130932474
DeepCCS[M-H]-177.40330932474
DeepCCS[M-2H]-211.47630932474
DeepCCS[M+Na]+186.70430932474

Predicted Kovats Retention Indices

Not Available
Spectra

MS/MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gardenin B 10V, Positive-QTOFsplash10-0a4i-0009000000-94235dbf8f75c99fbd222016-08-02Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gardenin B 20V, Positive-QTOFsplash10-0a4i-0009000000-927ca53e683bc4ba69532016-08-02Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gardenin B 40V, Positive-QTOFsplash10-03di-0259000000-dea961e95f28fe0273c22016-08-02Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gardenin B 10V, Negative-QTOFsplash10-0a4i-0009000000-86528933f1fb5f6f49bf2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gardenin B 20V, Negative-QTOFsplash10-0a4i-0009000000-779d95151f886854293c2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gardenin B 40V, Negative-QTOFsplash10-01oy-2195000000-06c67f7a540f7657254d2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gardenin B 10V, Positive-QTOFsplash10-0a4i-0009000000-9216d00d19e0b6ee77202021-10-21Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gardenin B 20V, Positive-QTOFsplash10-0a4i-0009000000-e8d30684b099443b2b9d2021-10-21Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gardenin B 40V, Positive-QTOFsplash10-014u-0369000000-064772e20e1e0bcdf3cc2021-10-21Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gardenin B 10V, Negative-QTOFsplash10-0a4i-0009000000-c2a6e417d0c66429ddb22021-10-21Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Gardenin B 20V, Negative-QTOFsplash10-0btc-0009000000-3fa5c4168345d9b2222f2021-10-21Wishart LabView Spectrum
Biological Properties
Cellular LocationsNot Available
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 IDFDB002752
KNApSAcK IDC00003883
Chemspider ID87155
KEGG Compound IDC15109
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound96539
PDB IDNot Available
ChEBI ID79628
Food Biomarker OntologyNot Available
VMH IDNot Available
MarkerDB IDNot Available
Good Scents IDrw1822891
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General ReferencesNot Available