Diatrizoic acid
（重定向自Urografin）
![Skeletal formula](/Images/godic/202502/19/Diatrizoic_acid.svg4600.png")
![Space-filling model](/Images/godic/202502/19/Diatrizoic-acid-3D-spacefill4600.png")
![](/Images/godic/202502/19/3,5-diacetamido-2,4,6-triiodobenzoic_acid_200.svg4600.png")
Diatrizoic acid (or its anionic form, diatrizoate), also known as amidotrizoic acid, or 3,5-diacetamido-2,4,6-triiodobenzoic acid, is a radiocontrast agent containing iodine. Trade names include Hypaque, Gastrografin and Urografin, the latter being a combination of the sodium and meglumine salts.