Oxonic Acid-<sup>13</sup>C<sub>2</sub>,<sup>15</sup>N<sub>3</sub> (potassium salt hydrate)

Oxonic Acid-13C2,15N3 (potassium salt hydrate)

CAT N°: 33282
Price:

457.00 388.45

Oxonic acid-13C2,15N3 is intended for use as an internal standard for the quantification of oxonic acid (potassium salt) (Item No. 22586) by GC- or LC-MS. Oxonic acid is a uricase inhibitor (IC50 = 0.8 µM) that prevents metabolism and excretion of uric acid.{58362,40118} It also inhibits orotate phosphoribosyltransferase (ORPT), reducing OPRT-mediated phosphorylation of 5-fluorouracil (5-FU; Item No. 14416) in Yoshida sarcoma cell extracts with an IC50 value of 3.7 µM.{58363} Oxonic acid (10-50 mg/kg) decreases the severity of gastrointestinal tract injury and the incidence of diarrhea induced by the 5-FU prodrug tegafur (Item No. 26076) and uracil (Item No. 26088) without loss of antitumor activity in a rat Yoshida sarcoma model. It has also been used to induce hyperuricemia in rodents.{58364} Formulations containing oxonic acid have been used in the treatment of head, neck, lung, pancreatic, gastric, and breast carcinomas.

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