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Record Information
Version5.0
StatusExpected but not Quantified
Creation Date2013-06-12 17:32:37 UTC
Update Date2019-07-23 07:14:33 UTC
HMDB IDHMDB0060537
Secondary Accession Numbers
  • HMDB60537
Metabolite Identification
Common Namep-Hydroxyphenobarbital
Descriptionp-Hydroxyphenobarbital, also known as p-hydroxy-PB, belongs to the class of organic compounds known as barbituric acid derivatives. Barbituric acid derivatives are compounds containing a perhydropyrimidine ring substituted at C-2, -4 and -6 by oxo groups. p-Hydroxyphenobarbital is an extremely weak basic (essentially neutral) compound (based on its pKa).
Structure
Data?1563866073
Synonyms
ValueSource
p-Hydroxy-phenobarbitoneHMDB
Para-hydroxyphenobarbitalHMDB
p-Hydroxy-PBHMDB
Chemical FormulaC12H12N2O4
Average Molecular Weight248.2347
Monoisotopic Molecular Weight248.079706882
IUPAC Name5-ethyl-5-(4-hydroxyphenyl)-1,3-diazinane-2,4,6-trione
Traditional Name5-ethyl-5-(4-hydroxyphenyl)-1,3-diazinane-2,4,6-trione
CAS Registry NumberNot Available
SMILES
CCC1(C(=O)NC(=O)NC1=O)C1=CC=C(O)C=C1
InChI Identifier
InChI=1S/C12H12N2O4/c1-2-12(7-3-5-8(15)6-4-7)9(16)13-11(18)14-10(12)17/h3-6,15H,2H2,1H3,(H2,13,14,16,17,18)
InChI KeyIEPXMKJNWPXDBP-UHFFFAOYSA-N
Chemical Taxonomy
Description Belongs to the class of organic compounds known as barbituric acid derivatives. Barbituric acid derivatives are compounds containing a perhydropyrimidine ring substituted at C-2, -4 and -6 by oxo groups.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassDiazines
Sub ClassPyrimidines and pyrimidine derivatives
Direct ParentBarbituric acid derivatives
Alternative Parents
Substituents
  • Barbiturate
  • 1-hydroxy-2-unsubstituted benzenoid
  • N-acyl urea
  • Phenol
  • Ureide
  • Monocyclic benzene moiety
  • 1,3-diazinane
  • Benzenoid
  • Dicarboximide
  • Urea
  • Carbonic acid derivative
  • Carboxylic acid derivative
  • Azacycle
  • Organic oxide
  • Organopnictogen compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Carbonyl group
  • Hydrocarbon derivative
  • Aromatic heteromonocyclic compound
Molecular FrameworkAromatic heteromonocyclic compounds
External DescriptorsNot Available
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
Water Solubility0.98 g/LALOGPS
logP0.85ALOGPS
logP1.1ChemAxon
logS-2.4ALOGPS
pKa (Strongest Acidic)8.12ChemAxon
pKa (Strongest Basic)-6ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count4ChemAxon
Hydrogen Donor Count3ChemAxon
Polar Surface Area95.5 ŲChemAxon
Rotatable Bond Count2ChemAxon
Refractivity61.73 m³·mol⁻¹ChemAxon
Polarizability23.61 ųChemAxon
Number of Rings2ChemAxon
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]+156.71831661259
DarkChem[M-H]-152.91431661259
DeepCCS[M+H]+168.69730932474
DeepCCS[M-H]-166.33930932474
DeepCCS[M-2H]-199.22530932474
DeepCCS[M+Na]+174.7930932474
AllCCS[M+H]+155.632859911
AllCCS[M+H-H2O]+151.732859911
AllCCS[M+NH4]+159.232859911
AllCCS[M+Na]+160.232859911
AllCCS[M-H]-156.532859911
AllCCS[M+Na-2H]-156.432859911
AllCCS[M+HCOO]-156.332859911

Predicted Kovats Retention Indices

Underivatized

MetaboliteSMILESKovats RI ValueColumn TypeReference
p-HydroxyphenobarbitalCCC1(C(=O)NC(=O)NC1=O)C1=CC=C(O)C=C14069.1Standard polar33892256
p-HydroxyphenobarbitalCCC1(C(=O)NC(=O)NC1=O)C1=CC=C(O)C=C12398.3Standard non polar33892256
p-HydroxyphenobarbitalCCC1(C(=O)NC(=O)NC1=O)C1=CC=C(O)C=C12381.8Semi standard non polar33892256

Derivatized

Derivative Name / StructureSMILESKovats RI ValueColumn TypeReference
p-Hydroxyphenobarbital,1TMS,isomer #1CCC1(C2=CC=C(O[Si](C)(C)C)C=C2)C(=O)NC(=O)NC1=O2265.0Semi standard non polar33892256
p-Hydroxyphenobarbital,1TMS,isomer #2CCC1(C2=CC=C(O)C=C2)C(=O)NC(=O)N([Si](C)(C)C)C1=O2096.0Semi standard non polar33892256
p-Hydroxyphenobarbital,2TMS,isomer #1CCC1(C2=CC=C(O[Si](C)(C)C)C=C2)C(=O)NC(=O)N([Si](C)(C)C)C1=O2177.7Semi standard non polar33892256
p-Hydroxyphenobarbital,2TMS,isomer #1CCC1(C2=CC=C(O[Si](C)(C)C)C=C2)C(=O)NC(=O)N([Si](C)(C)C)C1=O2366.2Standard non polar33892256
p-Hydroxyphenobarbital,2TMS,isomer #1CCC1(C2=CC=C(O[Si](C)(C)C)C=C2)C(=O)NC(=O)N([Si](C)(C)C)C1=O3188.8Standard polar33892256
p-Hydroxyphenobarbital,2TMS,isomer #2CCC1(C2=CC=C(O)C=C2)C(=O)N([Si](C)(C)C)C(=O)N([Si](C)(C)C)C1=O2008.6Semi standard non polar33892256
p-Hydroxyphenobarbital,2TMS,isomer #2CCC1(C2=CC=C(O)C=C2)C(=O)N([Si](C)(C)C)C(=O)N([Si](C)(C)C)C1=O2342.9Standard non polar33892256
p-Hydroxyphenobarbital,2TMS,isomer #2CCC1(C2=CC=C(O)C=C2)C(=O)N([Si](C)(C)C)C(=O)N([Si](C)(C)C)C1=O2910.3Standard polar33892256
p-Hydroxyphenobarbital,3TMS,isomer #1CCC1(C2=CC=C(O[Si](C)(C)C)C=C2)C(=O)N([Si](C)(C)C)C(=O)N([Si](C)(C)C)C1=O2119.1Semi standard non polar33892256
p-Hydroxyphenobarbital,3TMS,isomer #1CCC1(C2=CC=C(O[Si](C)(C)C)C=C2)C(=O)N([Si](C)(C)C)C(=O)N([Si](C)(C)C)C1=O2369.2Standard non polar33892256
p-Hydroxyphenobarbital,3TMS,isomer #1CCC1(C2=CC=C(O[Si](C)(C)C)C=C2)C(=O)N([Si](C)(C)C)C(=O)N([Si](C)(C)C)C1=O2679.7Standard polar33892256
p-Hydroxyphenobarbital,1TBDMS,isomer #1CCC1(C2=CC=C(O[Si](C)(C)C(C)(C)C)C=C2)C(=O)NC(=O)NC1=O2476.3Semi standard non polar33892256
p-Hydroxyphenobarbital,1TBDMS,isomer #2CCC1(C2=CC=C(O)C=C2)C(=O)NC(=O)N([Si](C)(C)C(C)(C)C)C1=O2371.7Semi standard non polar33892256
p-Hydroxyphenobarbital,2TBDMS,isomer #1CCC1(C2=CC=C(O[Si](C)(C)C(C)(C)C)C=C2)C(=O)NC(=O)N([Si](C)(C)C(C)(C)C)C1=O2621.3Semi standard non polar33892256
p-Hydroxyphenobarbital,2TBDMS,isomer #1CCC1(C2=CC=C(O[Si](C)(C)C(C)(C)C)C=C2)C(=O)NC(=O)N([Si](C)(C)C(C)(C)C)C1=O2822.7Standard non polar33892256
p-Hydroxyphenobarbital,2TBDMS,isomer #1CCC1(C2=CC=C(O[Si](C)(C)C(C)(C)C)C=C2)C(=O)NC(=O)N([Si](C)(C)C(C)(C)C)C1=O3265.2Standard polar33892256
p-Hydroxyphenobarbital,2TBDMS,isomer #2CCC1(C2=CC=C(O)C=C2)C(=O)N([Si](C)(C)C(C)(C)C)C(=O)N([Si](C)(C)C(C)(C)C)C1=O2502.9Semi standard non polar33892256
p-Hydroxyphenobarbital,2TBDMS,isomer #2CCC1(C2=CC=C(O)C=C2)C(=O)N([Si](C)(C)C(C)(C)C)C(=O)N([Si](C)(C)C(C)(C)C)C1=O2798.2Standard non polar33892256
p-Hydroxyphenobarbital,2TBDMS,isomer #2CCC1(C2=CC=C(O)C=C2)C(=O)N([Si](C)(C)C(C)(C)C)C(=O)N([Si](C)(C)C(C)(C)C)C1=O2996.8Standard polar33892256
p-Hydroxyphenobarbital,3TBDMS,isomer #1CCC1(C2=CC=C(O[Si](C)(C)C(C)(C)C)C=C2)C(=O)N([Si](C)(C)C(C)(C)C)C(=O)N([Si](C)(C)C(C)(C)C)C1=O2804.4Semi standard non polar33892256
p-Hydroxyphenobarbital,3TBDMS,isomer #1CCC1(C2=CC=C(O[Si](C)(C)C(C)(C)C)C=C2)C(=O)N([Si](C)(C)C(C)(C)C)C(=O)N([Si](C)(C)C(C)(C)C)C1=O3020.4Standard non polar33892256
p-Hydroxyphenobarbital,3TBDMS,isomer #1CCC1(C2=CC=C(O[Si](C)(C)C(C)(C)C)C=C2)C(=O)N([Si](C)(C)C(C)(C)C)C(=O)N([Si](C)(C)C(C)(C)C)C1=O2924.5Standard polar33892256
Spectra

GC-MS Spectra

Spectrum TypeDescriptionSplash KeyDeposition DateSourceView
Predicted GC-MSPredicted GC-MS Spectrum - p-Hydroxyphenobarbital GC-MS (Non-derivatized) - 70eV, Positivesplash10-001i-1790000000-04c54f3388973824b1012017-09-20Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - p-Hydroxyphenobarbital GC-MS (1 TMS) - 70eV, Positivesplash10-062c-3192000000-fded03ae24218c64c8b92017-10-06Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - p-Hydroxyphenobarbital GC-MS (Non-derivatized) - 70eV, PositiveNot Available2021-10-12Wishart LabView Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - p-Hydroxyphenobarbital 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 - p-Hydroxyphenobarbital 10V, Positive-QTOFsplash10-0002-0190000000-d98a0398c95d1c6f4a812016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - p-Hydroxyphenobarbital 20V, Positive-QTOFsplash10-004i-0920000000-df72e42c0fcb2c6c2e8b2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - p-Hydroxyphenobarbital 40V, Positive-QTOFsplash10-00lr-5900000000-3e45278a0a390b730aca2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - p-Hydroxyphenobarbital 10V, Negative-QTOFsplash10-0f6y-6090000000-53548f008a7f16a0dbb12016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - p-Hydroxyphenobarbital 20V, Negative-QTOFsplash10-0006-9520000000-93e86efebaa6dbde584c2016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - p-Hydroxyphenobarbital 40V, Negative-QTOFsplash10-0006-9700000000-3b7b8b4679162d3124d22016-08-03Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - p-Hydroxyphenobarbital 10V, Positive-QTOFsplash10-0002-0190000000-101892e432ef202fd1452021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - p-Hydroxyphenobarbital 20V, Positive-QTOFsplash10-001r-0920000000-71b52ae7a75b98e8ec392021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - p-Hydroxyphenobarbital 40V, Positive-QTOFsplash10-05o0-3920000000-036b204c1ba93d5c8ea62021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - p-Hydroxyphenobarbital 10V, Negative-QTOFsplash10-002f-9800000000-a91d5d488215830432d62021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - p-Hydroxyphenobarbital 20V, Negative-QTOFsplash10-0006-9100000000-8d8b98292f3e4a2569d92021-10-12Wishart LabView Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - p-Hydroxyphenobarbital 40V, Negative-QTOFsplash10-0006-9100000000-d73a2a83b005240193502021-10-12Wishart LabView Spectrum
Biological Properties
Cellular Locations
  • Cytoplasm
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 Compound9785
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