Uric Acid
Title: Uric Acid
CAS Registry Number: 69-93-2
CAS Name: 7,9-Dihydro-1H-purine-2,6,8(3H)-trione
Additional Names: 8-hydroxyxanthine; purine-2,6,8-triol; purine-2,6,8(1H,3H,9H)-trione; 2,6,8-trioxypurine
Molecular Formula: C5H4N4O3
Molecular Weight: 168.11
Percent Composition: C 35.72%, H 2.40%, N 33.33%, O 28.55%
Literature References: Discovered by Scheele and independently by Bergman in 1776. It forms the chief end-product of the nitrogenous metabolism of birds and of scaly reptiles and is found in their excrement; present in the urine of all carnivorous animals. Prepn from urea: Bills et al., J. Org. Chem. 27, 4633 (1962). Role in biological processes: Bishop, Talbott, Pharmacol. Rev. 5, 231 (1953).
Properties: White, odorless, tasteless crystals; dec by heat without melting and with evolution of HCN. d 1.89. One gram dissolves in about 15,000 parts cold water, about 2000 parts boiling water; sol in glycerol, in solns of alkali hydroxides, their carbonates, sodium acetate and sodium phosphate. Insol in alcohol, ether. Gives murexide reaction.
Density: d 1.89

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