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
Version4.0
StatusExpected but not Quantified
Creation Date2013-05-17 01:01:12 UTC
Update Date2019-07-23 07:14:17 UTC
HMDB IDHMDB0060417
Secondary Accession Numbers
  • HMDB60417
Metabolite Identification
Common Name6-Thiourate
Description6-Thiourate, also known as 6-thiouric acid, belongs to the class of organic compounds 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. 6-Thiourate is an extremely weak basic (essentially neutral) compound (based on its pKa). 6-Thiourate exists in all living organisms, ranging from bacteria to humans. These are aromatic heterocyclic compounds containing a purine moiety, which is formed a pyrimidine-ring ring fused to an imidazole ring.
Structure
Data?1563866057
Synonyms
ValueSource
6-Thiouric acidKegg
6-ThioateGenerator
6-Thioic acidGenerator
Thiouric acidHMDB
Chemical FormulaC5H4N4O2S
Average Molecular Weight184.176
Monoisotopic Molecular Weight184.005496082
IUPAC Name6-sulfanyl-9H-purine-2,8-diol
Traditional Name6-thio- (van) (8CI) uric acid
CAS Registry NumberNot Available
SMILES
OC1=NC2=C(N1)N=C(O)N=C2S
InChI Identifier
InChI=1S/C5H4N4O2S/c10-4-6-1-2(7-4)8-5(11)9-3(1)12/h(H4,6,7,8,9,10,11,12)
InChI KeySXHQUGJSTGOXMD-UHFFFAOYSA-N
Chemical Taxonomy
Description belongs to the class of organic compounds 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.
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
ClassImidazopyrimidines
Sub ClassPurines and purine derivatives
Direct ParentPurinones
Alternative Parents
Substituents
  • Purinethione
  • Purinone
  • Pyrimidone
  • Pyrimidinethione
  • Pyrimidine
  • Azole
  • Imidazole
  • Heteroaromatic compound
  • Thiolactam
  • Urea
  • Azacycle
  • Organic nitrogen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organopnictogen compound
  • Organosulfur compound
  • Organooxygen compound
  • Organonitrogen compound
  • Organic oxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
Process

Naturally occurring process:

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 Solubility0.58 g/LALOGPS
logP0.96ALOGPS
logP1.15ChemAxon
logS-2.5ALOGPS
pKa (Strongest Acidic)6.99ChemAxon
pKa (Strongest Basic)-1.9ChemAxon
Physiological Charge-1ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count4ChemAxon
Polar Surface Area94.92 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity43.29 m³·mol⁻¹ChemAxon
Polarizability16.25 ųChemAxon
Number of Rings2ChemAxon
BioavailabilityYesChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleNoChemAxon
Spectra
Spectrum TypeDescriptionSplash KeyView
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-001m-5900000000-bd9a8c6cd79e70ba1be4Spectrum
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (2 TMS) - 70eV, Positivesplash10-03k9-5593000000-a41b39ef08a7f50275a9Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-000i-0900000000-5ffb057929aea62d8de0Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-000l-0900000000-f3680c86386020f06164Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0a4i-9200000000-d17684ad8a62062d6760Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-001i-0900000000-9517c279e50325074231Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-053j-3900000000-83f3851b60664440e383Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0007-9100000000-2a32afac850b7f75b0a9Spectrum
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 IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDC16613
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkThiouric acid
METLIN IDNot Available
PubChem Compound3032417
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Magrane M: UniProt Knowledgebase: a hub of integrated protein data. Database (Oxford). 2011 Mar 29;2011:bar009. doi: 10.1093/database/bar009. Print 2011. [PubMed:21447597 ]

Enzymes

General function:
Involved in oxidoreductase activity
Specific function:
Key enzyme in purine degradation. Catalyzes the oxidation of hypoxanthine to xanthine. Catalyzes the oxidation of xanthine to uric acid. Contributes to the generation of reactive oxygen species. Has also low oxidase activity towards aldehydes (in vitro).
Gene Name:
XDH
Uniprot ID:
P47989
Molecular weight:
146422.99
Reactions
Mercaptopurine + Water + Oxygen → 6-Thiourate + Hydrogen peroxidedetails