Contrast agent for angiography and urography

摘要

3-(N- beta , gamma -dihydroxypropyl-acetyl-amino)-5-acetylaminomethyl-2,4,6-triiodobenzoic acid and its non-toxic, water-soluble salts with alkali metals and amines are better tolerated by the central nervous system for intracerebral and intracisternal application than X-ray contrast agents available heretofore for cerebral angiography. They are preferentially excreted from the blood by the kidney in a manner to make them useful for urography.