Chemical Component Summary

FormulaC5 H4 N4 O3
Molecular Weight168.11
Isomeric SMILESO=c1[nH]c2[nH]c(=O)[nH]c(=O)c2[nH]1

Chemical Details

Formal Charge0
Atom Count16
Chiral Atom Count0
Chiral Atomsn/a
Bond Count17
Aromatic Bond Count10
Leaving Atomsn/a

Drug Info: DrugBank

DrugBank IDDB08844 Different stereochemistry
NameUric Acid
  • experimental
  • investigational
DescriptionUric acid is the last product of purine metabolism in humans. The formation of uric acid is through the enzyme xanthine oxidase, which oxidizes oxypurines. Normally a small amount of uric acid is present in the body, but when there is an excess amount in the blood, called hyperuricemia, this can lead to gout and formation of kidney stones. As a therapeutic agent, it is known that uric acid is increased in response to oxidative stress, and as such, uric acid acts as an antioxidant. At present (August 2013), there is no approved formulation or indication for uric acid. In one country, Spain, uric acid is an investigational drug in a phase 3 trial studying its effects as an adjunct to alteplase in acute ischemic stroke.
  • 2,6,8-Trihydroxypurine
  • 7,9-dihydro-1H-purine-2,6,8(3H)-trione
  • Urate
Affected OrganismHumans and other mammals
IndicationAt present (August 2013), there is no approved indication for uric acid. The potential therapeutic use for uric acid is as an adjunct in acute ischemic stroke.
PharmacologyUric acid is a strong reducing agent (donates electrons) and an antioxidant. Normally in humans, one of the main antioxidants in plasma is uric acid. Several animal studies have found that animals given exogenous uric acid within 3 hours after a stroke had decreased infarct volume, improved neurologic function, and diminished inflammatory responses providing evidence for the neuroprotective effects of uric acid. In some early human studies, uric acid has so far shown similar neuroprotective effects, in both the cortex and subcortex areas, due to its antioxidant effects such as decreased lipid peroxidation, and there appears to be no significant toxicities.
Mechanism of actionThe exact mechanism of action for uric acid's antioxidant effects have not yet been elucidated.
  • Alkaloids
  • Antioxidants
  • Chemical Actions and Uses
  • Heterocyclic Compounds
  • Heterocyclic Compounds, 2-Ring
CAS number69-93-2

Drug Targets

NameSequence SearchPharmacological ActionActions
Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682