Uric acid SigmaUltra
 
 
Sigma-Aldrich
Molecular Formula: C5H4N4O3 Molecular Weight: 168.1 CAS Number: 69-93-2 pka: 5.4, 11.31 Extinction coefficient: EmM = 12.65 (292 nm) Synonyms: 7,9-dihydro-1H-purine-2,6,8(3H)-trione, 8-hydroxanthine, purine-2,6,8-triol, 2,6,8-trioxypurine2 Trace elemental analyses have been performed on the SigmaUltra uric acid. The Certificate of Analysis provides lot-specific results. SigmaUltra uric acid is for applications which require tight control of elemental content.