The metabolism of sulphapyridine containing radioactive sulphur in the rabbit

Abstract
Sulfapyridine containing S35 was synthesized. Metabolic expts. with this compound in the rabbit showed that there is no complete catabolism to inorganic sulfate and no significant retention of the drug in the tissues after 3 days. Differences between the values obtained by assays of S35 and diazotizable material suggested the formation of a metabolite which does not diazotize or couple normally, but this has not yet been isolated.