Cambridge Encyclopedia :: Cambridge Encyclopedia Vol. 77

uric acid

An acid derived from purine, C5H4N4O3; like urea, used by animals as a means of excreting nitrogen. Deposits of crystals of uric acid and its salts in the body cause pain in gout and rheumatism.

Uric acid
General
Systematic name 7,9-dihydro-1H-purine-
2,6,8(3H)-trione
Other names 2,6,8 Trioxypurine
Molecular formula C5H4N4O3
SMILES C12NC(=O)NC(=O)C=2NC(=O)N1
Molar mass 168g/mol
Appearance White Crystals
CAS number 69-93-2
Properties
Density and phase 1.87
Solubility in water Slightly
Melting point decomposes on heating
Boiling point N/A
Acidity (pKa) 3.89
Structure
Molecular shape  ?
Coordination geometry  ?
Crystal structure  ?
Dipole moment  ?
Hazards
MSDS  ?
Main hazards  ?
Flash point  ? °C
R/S statement R: ?
RTECS number  ?
Thermodynamic data Phase behaviour
Solid, liquid, gas
Spectral data UV, IR, NMR, MS
Related compounds
Related compounds hypoxanthine, xanthine,
purine, urea,
urate, ammonia
Except where noted otherwise, data are given for
materials in their standard state (at 25°C, 100 kPa)
Infobox disclaimer and references

Uric acid (or uricite) is an organic compound of carbon, nitrogen, oxygen and hydrogen with the formula C5H4N4O3.

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