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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2012-09-11 18:19:59 UTC
Update Date2022-03-07 02:53:47 UTC
HMDB IDHMDB0033588
Secondary Accession Numbers
  • HMDB33588
Metabolite Identification
Common Name9-O-Methylcoumestrol
Description9-O-Methylcoumestrol belongs to the class of organic compounds known as coumestans. These are polycyclic aromatic compounds containing a coumestan moiety, which consists of a benzoxole fused to a chromen-2-one to form 1-Benzoxolo[3,2-c]chromen-6-one. They are oxidation products of pterocarpan. Thus, 9-O-methylcoumestrol is considered to be a flavonoid. 9-O-Methylcoumestrol has been detected, but not quantified in, several different foods, such as green tea, herbs and spices, red tea, herbal tea, and common peas (Pisum sativum). This could make 9-O-methylcoumestrol a potential biomarker for the consumption of these foods. Based on a literature review very few articles have been published on 9-O-Methylcoumestrol.
Structure
Data?1563862429
Synonyms
ValueSource
12-O-MethylcoumestrolHMDB
3-Hydroxy-9-methoxycoumestanHMDB
4'-MethoxycoumestrolHMDB
4'-O-MethylcoumestrolHMDB
Methyl N-methylnipecotateHMDB
Chemical FormulaC16H10O5
Average Molecular Weight282.2476
Monoisotopic Molecular Weight282.05282343
IUPAC Name5-hydroxy-14-methoxy-8,17-dioxatetracyclo[8.7.0.0²,⁷.0¹¹,¹⁶]heptadeca-1(10),2(7),3,5,11(16),12,14-heptaen-9-one
Traditional Name5-hydroxy-14-methoxy-8,17-dioxatetracyclo[8.7.0.0²,⁷.0¹¹,¹⁶]heptadeca-1(10),2(7),3,5,11(16),12,14-heptaen-9-one
CAS Registry Number1690-62-6
SMILES
COC1=CC2=C(C=C1)C1=C(O2)C2=C(OC1=O)C=C(O)C=C2
InChI Identifier
InChI=1S/C16H10O5/c1-19-9-3-5-10-13(7-9)20-15-11-4-2-8(17)6-12(11)21-16(18)14(10)15/h2-7,17H,1H3
InChI KeyHHEZPZWGHDOWCQ-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as coumestans. These are polycyclic aromatic compounds containing a coumestan moiety, which consists of a benzoxole fused to a chromen-2-one to form 1-Benzoxolo[3,2-c]chromen-6-one. They are oxidation products of pterocarpan.
KingdomOrganic compounds
Super ClassPhenylpropanoids and polyketides
ClassIsoflavonoids
Sub ClassCoumestans
Direct ParentCoumestans
Alternative Parents
Substituents
  • Coumestan
  • Angular furanocoumarin
  • Furanocoumarin
  • Coumarin
  • Benzopyran
  • 1-benzopyran
  • Benzofuran
  • Furopyran
  • Anisole
  • 1-hydroxy-2-unsubstituted benzenoid
  • Alkyl aryl ether
  • Pyranone
  • Benzenoid
  • Pyran
  • Heteroaromatic compound
  • Furan
  • Lactone
  • Organoheterocyclic compound
  • Oxacycle
  • Ether
  • 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
Role
Physical Properties
StateSolid
Experimental Molecular Properties
PropertyValueReference
Melting Point338 - 339 °CNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Experimental Chromatographic PropertiesNot Available
Predicted Molecular Properties
PropertyValueSource
Water Solubility0.11 g/LALOGPS
logP2.85ALOGPS
logP2.54ChemAxon
logS-3.4ALOGPS
pKa (Strongest Acidic)7.12ChemAxon
pKa (Strongest Basic)-4.2ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count3ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area68.9 ŲChemAxon
Rotatable Bond Count1ChemAxon
Refractivity74.1 m³·mol⁻¹ChemAxon
Polarizability28.55 ųChemAxon
Number of Rings4ChemAxon
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]+165.43431661259
DarkChem[M-H]-166.99931661259
DeepCCS[M+H]+172.96330932474
DeepCCS[M-H]-170.60530932474
DeepCCS[M-2H]-204.21230932474
DeepCCS[M+Na]+179.43930932474
AllCCS[M+H]+163.632859911
AllCCS[M+H-H2O]+159.732859911
AllCCS[M+NH4]+167.132859911
AllCCS[M+Na]+168.132859911
AllCCS[M-H]-166.032859911
AllCCS[M+Na-2H]-164.932859911
AllCCS[M+HCOO]-163.832859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
9-O-MethylcoumestrolCOC1=CC2=C(C=C1)C1=C(O2)C2=C(OC1=O)C=C(O)C=C24011.9Standard polar33892256
9-O-MethylcoumestrolCOC1=CC2=C(C=C1)C1=C(O2)C2=C(OC1=O)C=C(O)C=C22830.5Standard non polar33892256
9-O-MethylcoumestrolCOC1=CC2=C(C=C1)C1=C(O2)C2=C(OC1=O)C=C(O)C=C22944.9Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
9-O-Methylcoumestrol,1TMS,isomer #1COC1=CC=C2C(=C1)OC1=C2C(=O)OC2=CC(O[Si](C)(C)C)=CC=C213029.3Semi standard non polar33892256
9-O-Methylcoumestrol,1TBDMS,isomer #1COC1=CC=C2C(=C1)OC1=C2C(=O)OC2=CC(O[Si](C)(C)C(C)(C)C)=CC=C213232.1Semi standard non polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - 9-O-Methylcoumestrol GC-MS (Non-derivatized) - 70eV, Positivesplash10-0f80-0190000000-94c11589b4285910e5d82017-09-01Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 9-O-Methylcoumestrol GC-MS (1 TMS) - 70eV, Positivesplash10-0g5i-4779000000-921bc270bf36e41378022017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - 9-O-Methylcoumestrol 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 - 9-O-Methylcoumestrol 10V, Positive-QTOFsplash10-001i-0090000000-1ff7411520d6ff0f22e62015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9-O-Methylcoumestrol 20V, Positive-QTOFsplash10-001i-0090000000-dcbe2788c89b14ce9a8d2015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9-O-Methylcoumestrol 40V, Positive-QTOFsplash10-0gdi-0090000000-7c3dc506068d21eb5b432015-04-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9-O-Methylcoumestrol 10V, Negative-QTOFsplash10-001i-0090000000-bf271b4239f9685356ef2015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9-O-Methylcoumestrol 20V, Negative-QTOFsplash10-001i-0090000000-76e8557afe95a6a464882015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9-O-Methylcoumestrol 40V, Negative-QTOFsplash10-014i-1090000000-9989e1a4f1e55a6c4f622015-04-25Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9-O-Methylcoumestrol 10V, Positive-QTOFsplash10-001i-0090000000-03c912f44b4d54fe7f1b2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9-O-Methylcoumestrol 20V, Positive-QTOFsplash10-001i-0090000000-03c912f44b4d54fe7f1b2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9-O-Methylcoumestrol 40V, Positive-QTOFsplash10-053v-0190000000-fece2d85dbb0fd2da10b2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9-O-Methylcoumestrol 10V, Negative-QTOFsplash10-001i-0090000000-60166d79143e3c19fb0f2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9-O-Methylcoumestrol 20V, Negative-QTOFsplash10-001i-0090000000-cab7882440e1204f1c6e2021-09-24Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 9-O-Methylcoumestrol 40V, Negative-QTOFsplash10-0gbi-0090000000-9531507e13c5ce98799b2021-09-24Wishart 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 IDFDB011665
KNApSAcK IDC00009757
Chemspider ID4477838
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound16800
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.. .

Enzymes

General function:
Involved in transferase activity, transferring hexosyl groups
Specific function:
UDPGT is of major importance in the conjugation and subsequent elimination of potentially toxic xenobiotics and endogenous compounds. This isoform glucuronidates bilirubin IX-alpha to form both the IX-alpha-C8 and IX-alpha-C12 monoconjugates and diconjugate. Is also able to catalyze the glucuronidation of 17beta-estradiol, 17alpha-ethinylestradiol, 1-hydroxypyrene, 4-methylumbelliferone, 1-naphthol, paranitrophenol, scopoletin, and umbelliferone.
Gene Name:
UGT1A1
Uniprot ID:
P22309
Molecular weight:
59590.91
Reactions
9-O-Methylcoumestrol → 3,4,5-trihydroxy-6-({14-methoxy-9-oxo-8,17-dioxatetracyclo[8.7.0.0²,⁷.0¹¹,¹⁶]heptadeca-1(10),2(7),3,5,11(16),12,14-heptaen-5-yl}oxy)oxane-2-carboxylic aciddetails