You are using an unsupported browser. Please upgrade your browser to a newer version to get the best experience on Human Metabolome Database.
Record Information
Version3.6
Creation Date2013-07-04 19:00:33 UTC
Update Date2017-08-18 12:50:09 UTC
HMDB IDHMDB0060804
Secondary Accession Numbers
  • HMDB60804
Metabolite Identification
Common Name8-Hydroxythioguanine
Description8-Hydroxythioguanine is a metabolite of azathioprine. Azathioprine is a purine analogue immunosuppressive drug. It is used to prevent rejection following organ transplantation, and to treat a vast array of autoimmune diseases, including rheumatoid arthritis, pemphigus, inflammatory bowel disease, multiple sclerosis, autoimmune hepatitis, atopic dermatitis, myasthenia gravis, neuromyelitis optica or Devic's disease, restrictive lung disease, and others. (Wikipedia)
Structure
Thumb
SynonymsNot Available
Chemical FormulaC5H5N5OS
Average Molecular Weight183.191
Monoisotopic Molecular Weight183.021480497
IUPAC Name2-imino-6-sulfanyl-3,9-dihydro-2H-purin-8-ol
Traditional Name2-imino-6-sulfanyl-3,9-dihydropurin-8-ol
CAS Registry Number88550-56-5
SMILES
OC1=NC2=C(N1)NC(=N)N=C2S
InChI Identifier
InChI=1S/C5H5N5OS/c6-4-8-2-1(3(12)10-4)7-5(11)9-2/h(H5,6,7,8,9,10,11,12)
InChI KeyTWLCFFLQLXBKAP-UHFFFAOYSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of chemical entities known as purinones. These are purines in which the purine moiety bears a C=O group. Purine is a bicyclic aromatic compound made up of a pyrimidine ring fused to an imidazole ring.
KingdomChemical entities
Super ClassOrganic compounds
ClassOrganoheterocyclic compounds
Sub ClassImidazopyrimidines
Direct ParentPurinones
Alternative Parents
Substituents
  • Purinethione
  • Purinone
  • Aminopyrimidine
  • Pyrimidinethione
  • Primary aromatic amine
  • Pyrimidine
  • Azole
  • Imidazole
  • Heteroaromatic compound
  • Urea
  • Azacycle
  • Hydrocarbon derivative
  • Organic oxide
  • Organopnictogen compound
  • Organic oxygen compound
  • Primary amine
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic nitrogen compound
  • Amine
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available
Ontology
StatusExpected but not Quantified
Origin
  • Drug metabolite
Biofunction
  • Waste products
ApplicationNot Available
Cellular locations
  • Cytoplasm
Physical Properties
StateNot Available
Experimental Properties
PropertyValueReference
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
PropertyValueSource
Water Solubility0.38 mg/mLALOGPS
logP0.67ALOGPS
logP0.44ChemAxon
logS-2.7ALOGPS
pKa (Strongest Acidic)10.41ChemAxon
pKa (Strongest Basic)6.56ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count5ChemAxon
Polar Surface Area97.15 Å2ChemAxon
Rotatable Bond Count0ChemAxon
Refractivity56.19 m3·mol-1ChemAxon
Polarizability16.73 Å3ChemAxon
Number of Rings2ChemAxon
Bioavailability1ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Spectra
Spectra
Spectrum TypeDescriptionSplash Key
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, PositiveNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, NegativeNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, NegativeNot Available
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, NegativeNot Available
Biological Properties
Cellular Locations
  • Cytoplasm
Biofluid Locations
  • Blood
  • Urine
Tissue Location
  • Kidney
  • Liver
Pathways
NameSMPDB LinkKEGG Link
Azathioprine PathwaySMP00427Not Available
Mercaptopurine Metabolism PathwaySMP00609Not Available
Mercaptopurine PathwaySMP00428Not Available
Thioguanine PathwaySMP00430Not Available
Normal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
BloodExpected but not Quantified Not AvailableNot AvailableNormal
    details
    UrineExpected but not Quantified Not AvailableNot AvailableNormal
      details
      Abnormal Concentrations
      Not Available
      Associated Disorders and Diseases
      Disease ReferencesNone
      Associated OMIM IDsNone
      DrugBank IDNot Available
      DrugBank Metabolite IDDBMET00780
      Phenol Explorer Compound IDNot Available
      Phenol Explorer Metabolite IDNot Available
      FoodDB IDNot Available
      KNApSAcK IDNot Available
      Chemspider IDNot Available
      KEGG Compound IDNot Available
      BioCyc IDNot Available
      BiGG IDNot Available
      Wikipedia LinkNot Available
      NuGOwiki LinkHMDB0060804
      METLIN IDNot Available
      PubChem Compound10442362
      PDB IDNot Available
      ChEBI IDNot Available
      References
      Synthesis ReferenceNot Available
      Material Safety Data Sheet (MSDS)Not Available
      General ReferencesNot Available