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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2013-07-04 19:04:27 UTC
Update Date2021-09-14 14:57:12 UTC
HMDB IDHMDB0060867
Secondary Accession Numbers
  • HMDB60867
Metabolite Identification
Common NamePhenytoin methylcatechol
DescriptionPhenytoin methylcatechol belongs to the class of organic compounds known as phenylhydantoins. These are heterocyclic aromatic compounds containing an imiazolidinedione moiety substituted by a phenyl group. Phenytoin acts to suppress the abnormal brain activity seen in seizure by reducing electrical conductance among brain cells by stabilizing the inactive state of voltage-gated sodium channels. Phenytoin methylcatechol is an extremely weak basic (essentially neutral) compound (based on its pKa). phenytoin methylcatechol and S-adenosylhomocysteine can be biosynthesized from phenytoin catechol and S-adenosylmethionine; which is mediated by the enzyme catechol O-methyltransferase. In humans, phenytoin methylcatechol is involved in the metabolic disorder called the phenytoin (antiarrhythmic) action pathway. It is sometimes considered a class 1b antiarrhythmic. Aside from seizures, it is an option in the treatment of trigeminal neuralgia in the event that carbamazepine or other first-line treatment seems inappropriate. Phenytoin sodium is a commonly used antiepileptic. Phenytoin methylcatechol is a metabolite of phenytoin.
Structure
Data?1563866115
SynonymsNot Available
Chemical FormulaC16H12N2O4
Average Molecular Weight296.2775
Monoisotopic Molecular Weight296.079706882
IUPAC Name5-(2,5-dioxo-4-phenylimidazolidin-4-yl)-2-hydroxybenzaldehyde
Traditional Name5-(2,5-dioxo-4-phenylimidazolidin-4-yl)-2-hydroxybenzaldehyde
CAS Registry NumberNot Available
SMILES
OC1=C(C=O)C=C(C=C1)C1(NC(=O)NC1=O)C1=CC=CC=C1
InChI Identifier
InChI=1S/C16H12N2O4/c19-9-10-8-12(6-7-13(10)20)16(11-4-2-1-3-5-11)14(21)17-15(22)18-16/h1-9,20H,(H2,17,18,21,22)
InChI KeyIVKHYRHKQDQYFC-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as phenylhydantoins. These are heterocyclic aromatic compounds containing an imiazolidinedione moiety substituted by a phenyl group.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassAzolidines
Sub ClassImidazolidines
Direct ParentPhenylhydantoins
Alternative Parents
Substituents
  • Diphenylmethane
  • 5-phenylhydantoin
  • Phenylimidazolidine
  • Alpha-amino acid or derivatives
  • Hydroxybenzaldehyde
  • Benzaldehyde
  • Benzoyl
  • 5-monosubstituted hydantoin
  • 1-hydroxy-2-unsubstituted benzenoid
  • N-acyl urea
  • Phenol
  • Aryl-aldehyde
  • Ureide
  • Monocyclic benzene moiety
  • Benzenoid
  • Dicarboximide
  • Vinylogous acid
  • Carbonic acid derivative
  • Urea
  • Azacycle
  • Carboxylic acid derivative
  • Organooxygen compound
  • Organonitrogen compound
  • Hydrocarbon derivative
  • Aldehyde
  • Carbonyl group
  • Organic oxide
  • Organopnictogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External DescriptorsNot Available
Ontology
Physiological effectNot Available
Disposition
Process
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
Water Solubility0.067 g/LALOGPS
logP1.75ALOGPS
logP2.21ChemAxon
logS-3.6ALOGPS
pKa (Strongest Acidic)8.3ChemAxon
pKa (Strongest Basic)-6ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area95.5 ŲChemAxon
Rotatable Bond Count3ChemAxon
Refractivity78.75 m³·mol⁻¹ChemAxon
Polarizability28.63 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]+166.58531661259
DarkChem[M-H]-164.34431661259
DeepCCS[M+H]+174.06230932474
DeepCCS[M-H]-171.70430932474
DeepCCS[M-2H]-205.57730932474
DeepCCS[M+Na]+180.80430932474
AllCCS[M+H]+167.632859911
AllCCS[M+H-H2O]+164.032859911
AllCCS[M+NH4]+171.032859911
AllCCS[M+Na]+172.032859911
AllCCS[M-H]-168.732859911
AllCCS[M+Na-2H]-168.032859911
AllCCS[M+HCOO]-167.432859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
Phenytoin methylcatecholOC1=C(C=O)C=C(C=C1)C1(NC(=O)NC1=O)C1=CC=CC=C14251.6Standard polar33892256
Phenytoin methylcatecholOC1=C(C=O)C=C(C=C1)C1(NC(=O)NC1=O)C1=CC=CC=C12953.3Standard non polar33892256
Phenytoin methylcatecholOC1=C(C=O)C=C(C=C1)C1(NC(=O)NC1=O)C1=CC=CC=C12907.2Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
Phenytoin methylcatechol,1TMS,isomer #1C[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)NC(=O)NC2=O)C=C1C=O3047.8Semi standard non polar33892256
Phenytoin methylcatechol,1TMS,isomer #2C[Si](C)(C)N1C(=O)NC(=O)C1(C1=CC=CC=C1)C1=CC=C(O)C(C=O)=C12856.3Semi standard non polar33892256
Phenytoin methylcatechol,1TMS,isomer #3C[Si](C)(C)N1C(=O)NC(C2=CC=CC=C2)(C2=CC=C(O)C(C=O)=C2)C1=O2850.2Semi standard non polar33892256
Phenytoin methylcatechol,2TMS,isomer #1C[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)C(=O)NC(=O)N2[Si](C)(C)C)C=C1C=O2895.7Semi standard non polar33892256
Phenytoin methylcatechol,2TMS,isomer #1C[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)C(=O)NC(=O)N2[Si](C)(C)C)C=C1C=O2842.7Standard non polar33892256
Phenytoin methylcatechol,2TMS,isomer #1C[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)C(=O)NC(=O)N2[Si](C)(C)C)C=C1C=O4055.2Standard polar33892256
Phenytoin methylcatechol,2TMS,isomer #2C[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)NC(=O)N([Si](C)(C)C)C2=O)C=C1C=O2931.7Semi standard non polar33892256
Phenytoin methylcatechol,2TMS,isomer #2C[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)NC(=O)N([Si](C)(C)C)C2=O)C=C1C=O2802.6Standard non polar33892256
Phenytoin methylcatechol,2TMS,isomer #2C[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)NC(=O)N([Si](C)(C)C)C2=O)C=C1C=O3862.0Standard polar33892256
Phenytoin methylcatechol,2TMS,isomer #3C[Si](C)(C)N1C(=O)N([Si](C)(C)C)C(C2=CC=CC=C2)(C2=CC=C(O)C(C=O)=C2)C1=O2537.3Semi standard non polar33892256
Phenytoin methylcatechol,2TMS,isomer #3C[Si](C)(C)N1C(=O)N([Si](C)(C)C)C(C2=CC=CC=C2)(C2=CC=C(O)C(C=O)=C2)C1=O2811.4Standard non polar33892256
Phenytoin methylcatechol,2TMS,isomer #3C[Si](C)(C)N1C(=O)N([Si](C)(C)C)C(C2=CC=CC=C2)(C2=CC=C(O)C(C=O)=C2)C1=O3555.3Standard polar33892256
Phenytoin methylcatechol,3TMS,isomer #1C[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)C(=O)N([Si](C)(C)C)C(=O)N2[Si](C)(C)C)C=C1C=O2643.0Semi standard non polar33892256
Phenytoin methylcatechol,3TMS,isomer #1C[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)C(=O)N([Si](C)(C)C)C(=O)N2[Si](C)(C)C)C=C1C=O2806.4Standard non polar33892256
Phenytoin methylcatechol,3TMS,isomer #1C[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)C(=O)N([Si](C)(C)C)C(=O)N2[Si](C)(C)C)C=C1C=O3320.4Standard polar33892256
Phenytoin methylcatechol,1TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)NC(=O)NC2=O)C=C1C=O3308.2Semi standard non polar33892256
Phenytoin methylcatechol,1TBDMS,isomer #2CC(C)(C)[Si](C)(C)N1C(=O)NC(=O)C1(C1=CC=CC=C1)C1=CC=C(O)C(C=O)=C13153.7Semi standard non polar33892256
Phenytoin methylcatechol,1TBDMS,isomer #3CC(C)(C)[Si](C)(C)N1C(=O)NC(C2=CC=CC=C2)(C2=CC=C(O)C(C=O)=C2)C1=O3175.1Semi standard non polar33892256
Phenytoin methylcatechol,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)C(=O)NC(=O)N2[Si](C)(C)C(C)(C)C)C=C1C=O3428.0Semi standard non polar33892256
Phenytoin methylcatechol,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)C(=O)NC(=O)N2[Si](C)(C)C(C)(C)C)C=C1C=O3241.8Standard non polar33892256
Phenytoin methylcatechol,2TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)C(=O)NC(=O)N2[Si](C)(C)C(C)(C)C)C=C1C=O4021.1Standard polar33892256
Phenytoin methylcatechol,2TBDMS,isomer #2CC(C)(C)[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)NC(=O)N([Si](C)(C)C(C)(C)C)C2=O)C=C1C=O3452.0Semi standard non polar33892256
Phenytoin methylcatechol,2TBDMS,isomer #2CC(C)(C)[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)NC(=O)N([Si](C)(C)C(C)(C)C)C2=O)C=C1C=O3219.7Standard non polar33892256
Phenytoin methylcatechol,2TBDMS,isomer #2CC(C)(C)[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)NC(=O)N([Si](C)(C)C(C)(C)C)C2=O)C=C1C=O3924.4Standard polar33892256
Phenytoin methylcatechol,2TBDMS,isomer #3CC(C)(C)[Si](C)(C)N1C(=O)N([Si](C)(C)C(C)(C)C)C(C2=CC=CC=C2)(C2=CC=C(O)C(C=O)=C2)C1=O3101.0Semi standard non polar33892256
Phenytoin methylcatechol,2TBDMS,isomer #3CC(C)(C)[Si](C)(C)N1C(=O)N([Si](C)(C)C(C)(C)C)C(C2=CC=CC=C2)(C2=CC=C(O)C(C=O)=C2)C1=O3228.0Standard non polar33892256
Phenytoin methylcatechol,2TBDMS,isomer #3CC(C)(C)[Si](C)(C)N1C(=O)N([Si](C)(C)C(C)(C)C)C(C2=CC=CC=C2)(C2=CC=C(O)C(C=O)=C2)C1=O3576.2Standard polar33892256
Phenytoin methylcatechol,3TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)C(=O)N([Si](C)(C)C(C)(C)C)C(=O)N2[Si](C)(C)C(C)(C)C)C=C1C=O3396.3Semi standard non polar33892256
Phenytoin methylcatechol,3TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)C(=O)N([Si](C)(C)C(C)(C)C)C(=O)N2[Si](C)(C)C(C)(C)C)C=C1C=O3415.2Standard non polar33892256
Phenytoin methylcatechol,3TBDMS,isomer #1CC(C)(C)[Si](C)(C)OC1=CC=C(C2(C3=CC=CC=C3)C(=O)N([Si](C)(C)C(C)(C)C)C(=O)N2[Si](C)(C)C(C)(C)C)C=C1C=O3454.5Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - Phenytoin methylcatechol GC-MS (Non-derivatized) - 70eV, Positivesplash10-0v00-0960000000-bda3f49ea38924bfc1bd2017-09-20Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Phenytoin methylcatechol GC-MS (1 TMS) - 70eV, Positivesplash10-00b9-2893000000-5cfff8f48221b1f4f7582017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - Phenytoin methylcatechol 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 - Phenytoin methylcatechol 10V, Positive-QTOFsplash10-004j-0090000000-89e8077f74c6891cd4ac2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Phenytoin methylcatechol 20V, Positive-QTOFsplash10-004i-0190000000-ca80aa4f8cf0ad545b2a2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Phenytoin methylcatechol 40V, Positive-QTOFsplash10-05fr-0940000000-00d5e69231c0bf46dd192017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Phenytoin methylcatechol 10V, Negative-QTOFsplash10-0002-0090000000-90d05301f1b239e4a5e62017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Phenytoin methylcatechol 20V, Negative-QTOFsplash10-0fxw-3190000000-281651580bc4a38bea5e2017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Phenytoin methylcatechol 40V, Negative-QTOFsplash10-0udm-4920000000-05f9311da7a5c3b026142017-10-06Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Phenytoin methylcatechol 10V, Positive-QTOFsplash10-0002-0090000000-0c95764557d19b6513e02021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Phenytoin methylcatechol 20V, Positive-QTOFsplash10-004i-0390000000-885fed503b67c278c72a2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Phenytoin methylcatechol 40V, Positive-QTOFsplash10-00fr-1790000000-54ce2dcc4b90f291fa632021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Phenytoin methylcatechol 10V, Negative-QTOFsplash10-0002-0090000000-8c0a37cb17704175d4252021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Phenytoin methylcatechol 20V, Negative-QTOFsplash10-0007-9370000000-7802a8e4e264c3c4fc3a2021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - Phenytoin methylcatechol 40V, Negative-QTOFsplash10-0006-9500000000-ccb684269530162f27462021-10-12Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm
  • Membrane (predicted from logP)
Biospecimen Locations
  • Blood
  • Urine
Tissue Locations
  • Kidney
  • Liver
Pathways
Normal Concentrations
BiospecimenStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableNormal
      Not Available
details
UrineExpected but not QuantifiedNot QuantifiedNot AvailableNot AvailableNormal
      Not Available
details
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDNot Available
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkNot Available
METLIN IDNot Available
PubChem Compound131769979
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 ReferencesNot Available