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Record Information
Version3.6
Creation Date2012-09-06 15:16:49 UTC
Update Date2017-03-02 21:33:19 UTC
HMDB IDHMDB14581
Secondary Accession NumbersNone
Metabolite Identification
Common NameAllopurinol
DescriptionAllopurinol is only found in individuals that have used or taken this drug. It is a xanthine oxidase inhibitor that decreases uric acid production. It also acts as an antimetabolite on some simpler organisms. [PubChem]Allopurinol and its active metabolite, oxypurinol, inhibits the enzyme xanthine oxidase, blocking the conversion of the oxypurines hypoxanthine and xanthine to uric acid. Elevated concentrations of oxypurine and oxypurine inhibition of xanthine oxidase through negative feedback results in a decrease in the concentrations of uric acid in the serum and urine. Allopurinol also facilitates the incorporation of hypoxanthine and xanthine into DNA and RNA, leading to a feedback inhibition of de novo purin synthesis and a decrease in serum uric acid concentrations as a result of an increase in nucleotide concentration.
Structure
Thumb
Synonyms
ValueSource
1,5-dihydro-4H-pyrazolo(3,4-D)Pyrimidin-4-oneChEBI
1,5-dihydro-4H-pyrazolo(3,4-D)Pyrimidine-4-oneChEBI
1H-pyrazolo(3,4-D)Pyrimidin-4-olChEBI
4'-Hydroxypyrazolol(3,4-D)pyrimidineChEBI
4-HPPChEBI
4-Hydroxy-1H-pyrazolo(3,4-D)pyrimidineChEBI
4-Hydroxy-3,4-pyrazolopyrimidineChEBI
4-hydroxypyrazolo(3,4-D)PyrimidineChEBI
4-HydroxypyrazolopyrimidineChEBI
4-Hydroxypyrazolyl(3,4-D)pyrimidineChEBI
4H-pyrazolo(3,4-D)Pyrimidin-4-oneChEBI
AL-100ChEBI
AllopurinolumChEBI
AlopurinolChEBI
ZyloprimChEBI
Allopurinol alphapharm brandMeSH
Allopurinol basf brandMeSH
Allopurinol merz brandMeSH
Allopurinol pharmafarm brandMeSH
Allopurinol roche brandMeSH
Allopurinol tad brandMeSH
Allopurinol thiemann brandMeSH
Allopurinol wellcome brandMeSH
Ashbourne brand OF allopurinolMeSH
Boots brand OF allopurinolMeSH
Fawns and mcallan brand OF allopurinolMeSH
FoliganMeSH
HamarinMeSH
Hennig brand OF allopurinolMeSH
Horner brand OF allopurinolMeSH
Jenapharm brand OF allopurinolMeSH
MiluritMeSH
MiluriteMeSH
Quimica, panMeSH
RemidMeSH
Rima brand OF allopurinolMeSH
RimapurinolMeSH
Rougier brand OF allopurinolMeSH
Thiemann brand OF allopurinolMeSH
UrtiasMeSH
XanturicMeSH
AllohexanMeSH
Allopurinol horner brandMeSH
Allopurinol merckle brandMeSH
Allopurinol multipharma brandMeSH
Allopurinol nicholas brandMeSH
Allopurinol novopharm brandMeSH
Allopurinol r.a.n. brandMeSH
Allopurinol rima brandMeSH
AlluralMeSH
Amrad brand OF allopurinolMeSH
AtisurilMeSH
Clonmel brand OF allopurinolMeSH
EmbarinMeSH
glaxo Wellcome brand OF allopurinolMeSH
ICN brand OF allopurinolMeSH
Merz brand OF allopurinolMeSH
Multipharma brand OF allopurinolMeSH
Nicholas brand OF allopurinolMeSH
PurinolMeSH
Rhône-poulenc rorer brand OF allopurinolMeSH
Rosen brand OF allopurinolMeSH
SuspendolMeSH
TAD brand OF allopurinolMeSH
TipuricMeSH
UripurinolMeSH
Wellcome brand OF allopurinolMeSH
XanthomaxMeSH
APS brand OF allopurinolMeSH
AlloprinMeSH
Allopurinol ashbourne brandMeSH
Allopurinol clonmel brandMeSH
Allopurinol douglas brandMeSH
Allopurinol hennig brandMeSH
Allopurinol hexal brandMeSH
Allopurinol rosen brandMeSH
Allopurinol gepepharm brandMeSH
AllparginMeSH
Alphapharm brand OF allopurinolMeSH
ApulongaMeSH
ApurinMeSH
BASF brand OF allopurinolMeSH
BleminolMeSH
Boehringer mannheim brand OF allopurinolMeSH
Byk gulden brand OF allopurinolMeSH
CapurateMeSH
Dorsch brand OF allopurinolMeSH
Douglas brand OF allopurinolMeSH
Hexal brand OF allopurinolMeSH
JenapurinolMeSH
Merckle brand OF allopurinolMeSH
NovopurolMeSH
Pan quimicaMeSH
PureductMeSH
Rhône poulenc rorer brand OF allopurinolMeSH
Roche brand OF allopurinolMeSH
RoucolMeSH
UrosinMeSH
Gepepharm brand OF allopurinolMeSH
AllohexalMeSH
AllopurinMeSH
Allopurinol aps brandMeSH
Allopurinol amrad brandMeSH
Allopurinol azupharma brandMeSH
Allopurinol bicther brandMeSH
Allopurinol boots brandMeSH
Allopurinol dorsch brandMeSH
Allopurinol icn brandMeSH
Allopurinol jenapharm brandMeSH
Allopurinol pinewood brandMeSH
Allopurinol protea brandMeSH
Allopurinol rougier brandMeSH
AllorinMeSH
Azupharma brand OF allopurinolMeSH
Bicther brand OF allopurinolMeSH
CaplenalMeSH
CellidrinMeSH
Henning berlin brand OF allopurinolMeSH
LopurinMeSH
LysuronMeSH
Novopharm brand OF allopurinolMeSH
Pharmafarm brand OF allopurinolMeSH
Pinewood brand OF allopurinolMeSH
ProgoutMeSH
Protea brand OF allopurinolMeSH
R.A.N. brand OF allopurinolMeSH
Reig jofre brand OF allopurinolMeSH
UribenzMeSH
UridocidMeSH
ZygoutMeSH
ZyloricMeSH
Chemical FormulaC5H4N4O
Average Molecular Weight136.1115
Monoisotopic Molecular Weight136.03851077
IUPAC Name1H,2H,4H-pyrazolo[3,4-d]pyrimidin-4-one
Traditional NameALLO
CAS Registry Number315-30-0
SMILES
O=C1N=CN=C2NNC=C12
InChI Identifier
InChI=1S/C5H4N4O/c10-5-3-1-8-9-4(3)6-2-7-5/h1-2H,(H2,6,7,8,9,10)
InChI KeyOFCNXPDARWKPPY-UHFFFAOYSA-N
Chemical Taxonomy
DescriptionThis compound belongs to the class of chemical entities known as pyrazolo[3,4-d]pyrimidines. These are aromatic heterocyclic compounds containing a pyrazolo[3,4-d]pyrimidine ring system, which consists of a pyrazole ring fused to but and not sharing a nitrogen atom with a pyrimidine ring.
KingdomChemical entities
Super ClassOrganic compounds
ClassOrganoheterocyclic compounds
Sub ClassPyrazolopyrimidines
Direct ParentPyrazolo[3,4-d]pyrimidines
Alternative Parents
Substituents
  • Pyrazolo[3,4-d]pyrimidine
  • Pyrimidone
  • Pyrimidine
  • Azole
  • Pyrazole
  • Vinylogous amide
  • Heteroaromatic compound
  • Azacycle
  • Organonitrogen compound
  • Organic oxygen compound
  • Organic nitrogen compound
  • Organooxygen compound
  • Hydrocarbon derivative
  • Organic oxide
  • Organopnictogen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External Descriptors
Ontology
StatusDetected and Quantified
Origin
  • Drug
Biofunction
  • Antimetabolites
  • Enzyme Inhibitors
  • Enzyme Inhibitors Antimetabolites
  • Free Radical Scavengers
  • Gout Suppressants
Application
  • Pharmaceutical
Cellular locations
  • Cytoplasm
  • Membrane
Physical Properties
StateSolid
Experimental Properties
PropertyValueReference
Melting Point350 °CNot Available
Boiling PointNot AvailableNot Available
Water Solubility5.88e+00 g/LNot Available
LogP-1Not Available
Predicted Properties
PropertyValueSource
Water Solubility5.88 mg/mLALOGPS
logP-1.7ALOGPS
logP-1.8ChemAxon
logS-1.4ALOGPS
pKa (Strongest Acidic)7.83ChemAxon
pKa (Strongest Basic)2.57ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count2ChemAxon
Polar Surface Area65.85 Å2ChemAxon
Rotatable Bond Count0ChemAxon
Refractivity54.24 m3·mol-1ChemAxon
Polarizability11.67 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
MSMass Spectrum (Electron Ionization)splash10-000i-7900000000-f5a7601a354a9d25428fView in MoNA
Biological Properties
Cellular Locations
  • Cytoplasm
  • Membrane
Biofluid Locations
  • Blood
  • Urine
Tissue LocationNot Available
PathwaysNot Available
Normal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
BloodExpected but not QuantifiedNot ApplicableNot AvailableNot AvailableTaking drug identified by DrugBank entry DB00437
  • Not Applicable
details
UrineExpected but not QuantifiedNot ApplicableNot AvailableNot AvailableTaking drug identified by DrugBank entry DB00437
  • Not Applicable
details
Abnormal Concentrations
BiofluidStatusValueAgeSexConditionReferenceDetails
UrineDetected and Quantified630 umol/mmol creatinineAdult (>18 years old)BothMolybdenum cofactor deficiency details
Predicted Concentrations
BiofluidValueOriginal ageOriginal sexOriginal conditionComments
Blood0-7 uMAdult (>18 years old)BothNormalPredicted based on drug qualities
Blood0-4 umol/mmol creatinineAdult (>18 years old)BothNormalPredicted based on drug qualities
Associated Disorders and Diseases
Disease References
Molybedum cofactor deficiency
  1. Wevers RA, Engelke UF, Moolenaar SH, Brautigam C, de Jong JG, Duran R, de Abreu RA, van Gennip AH: 1H-NMR spectroscopy of body fluids: inborn errors of purine and pyrimidine metabolism. Clin Chem. 1999 Apr;45(4):539-48. [10102915 ]
Associated OMIM IDs
  • 2521 (Molybedum cofactor deficiency)
DrugBank IDDB00437
DrugBank Metabolite IDNot Available
Phenol Explorer Compound IDNot Available
Phenol Explorer Metabolite IDNot Available
FoodDB IDNot Available
KNApSAcK IDNot Available
Chemspider ID2010
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkAllopurinol
NuGOwiki LinkHMDB14581
Metagene LinkHMDB14581
METLIN IDNot Available
PubChem Compound2094
PDB IDNot Available
ChEBI ID40279
References
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Download (PDF)
General References
  1. Suzuki I, Yamauchi T, Onuma M, Nozaki S: Allopurinol, an inhibitor of uric acid synthesis--can it be used for the treatment of metabolic syndrome and related disorders? Drugs Today (Barc). 2009 May;45(5):363-78. [19584965 ]
  2. George J, Struthers AD: Role of urate, xanthine oxidase and the effects of allopurinol in vascular oxidative stress. Vasc Health Risk Manag. 2009;5(1):265-72. Epub 2009 Apr 8. [19436671 ]
  3. Terkeltaub R: Update on gout: new therapeutic strategies and options. Nat Rev Rheumatol. 2010 Jan;6(1):30-8. [20046204 ]
  4. Pacher P, Nivorozhkin A, Szabo C: Therapeutic effects of xanthine oxidase inhibitors: renaissance half a century after the discovery of allopurinol. Pharmacol Rev. 2006 Mar;58(1):87-114. [16507884 ]
  5. Schlesinger N: Diagnosing and treating gout: a review to aid primary care physicians. Postgrad Med. 2010 Mar;122(2):157-61. doi: 10.3810/pgm.2010.03.2133. [20203467 ]

Enzymes

General function:
Involved in oxidoreductase activity
Specific function:
Not Available
Gene Name:
AOX1
Uniprot ID:
Q06278
Molecular weight:
147916.735
References
  1. Moriwaki Y, Yamamoto T, Nasako Y, Takahashi S, Suda M, Hiroishi K, Hada T, Higashino K: In vitro oxidation of pyrazinamide and allopurinol by rat liver aldehyde oxidase. Biochem Pharmacol. 1993 Sep 14;46(6):975-81. [8216357 ]
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
References
  1. Chen X, Ji ZL, Chen YZ: TTD: Therapeutic Target Database. Nucleic Acids Res. 2002 Jan 1;30(1):412-5. [11752352 ]
  2. Suzuki I, Yamauchi T, Onuma M, Nozaki S: Allopurinol, an inhibitor of uric acid synthesis--can it be used for the treatment of metabolic syndrome and related disorders? Drugs Today (Barc). 2009 May;45(5):363-78. [19584965 ]
  3. Carro MD, Falkenstein E, Radke WJ, Klandorf H: Effects of allopurinol on uric acid concentrations, xanthine oxidoreductase activity and oxidative stress in broiler chickens. Comp Biochem Physiol C Toxicol Pharmacol. 2010 Jan;151(1):12-7. Epub 2009 Aug 3. [19654053 ]
  4. George J, Struthers AD: Role of urate, xanthine oxidase and the effects of allopurinol in vascular oxidative stress. Vasc Health Risk Manag. 2009;5(1):265-72. Epub 2009 Apr 8. [19436671 ]
  5. Higgins P, Dawson J, Walters M: The potential for xanthine oxidase inhibition in the prevention and treatment of cardiovascular and cerebrovascular disease. Cardiovasc Psychiatry Neurol. 2009;2009:282059. Epub 2009 Nov 4. [20029618 ]
  6. Dincer HE, Dincer AP, Levinson DJ: Asymptomatic hyperuricemia: to treat or not to treat. Cleve Clin J Med. 2002 Aug;69(8):594, 597, 600-2 passim. [12184468 ]
  7. Kelley WN, Wyngaarden JB: Effects of allopurinol and oxipurinol on purine synthesis in cultured human cells. J Clin Invest. 1970 Mar;49(3):602-9. [5415686 ]
  8. Okamoto K: [Inhibitors of xanthine oxidoreductase]. Nihon Rinsho. 2008 Apr;66(4):748-53. [18409526 ]
  9. Taha MO, Simoes MJ, Noguerol EC, Mendonca FP, Pascoalick HM, Alves RA, Vivian ME, Morales FP, Campos AC, Magalhaes KG, Venerando PS, Tersariol IL, Monteiro HP, Oliveira-Junior IS, Jurkiewicz A, Caricati-Neto A: Effects of allopurinol on ischemia and reperfusion in rabbit livers. Transplant Proc. 2009 Apr;41(3):820-3. [19376361 ]
  10. Terkeltaub R: Update on gout: new therapeutic strategies and options. Nat Rev Rheumatol. 2010 Jan;6(1):30-8. [20046204 ]
  11. Pacher P, Nivorozhkin A, Szabo C: Therapeutic effects of xanthine oxidase inhibitors: renaissance half a century after the discovery of allopurinol. Pharmacol Rev. 2006 Mar;58(1):87-114. [16507884 ]
  12. Moriwaki Y, Yamamoto T, Nasako Y, Takahashi S, Suda M, Hiroishi K, Hada T, Higashino K: In vitro oxidation of pyrazinamide and allopurinol by rat liver aldehyde oxidase. Biochem Pharmacol. 1993 Sep 14;46(6):975-81. [8216357 ]

Transporters

General function:
Involved in transmembrane transport
Specific function:
Mediates sodium-independent multispecific organic anion transport. Transport of prostaglandin E2, prostaglandin F2, tetracycline, bumetanide, estrone sulfate, glutarate, dehydroepiandrosterone sulfate, allopurinol, 5-fluorouracil, paclitaxel, L-ascorbic acid, salicylate, ethotrexate, and alpha- ketoglutarate
Gene Name:
SLC22A7
Uniprot ID:
Q9Y694
Molecular weight:
60025.0
References
  1. Kobayashi Y, Ohshiro N, Shibusawa A, Sasaki T, Tokuyama S, Sekine T, Endou H, Yamamoto T: Isolation, characterization and differential gene expression of multispecific organic anion transporter 2 in mice. Mol Pharmacol. 2002 Jul;62(1):7-14. [12065749 ]