<unk>  (or its anionic form, Diatrizoate), also known as amidotrizoic acid, or 3,5-Diacetamido-2,4,6-triiodobenzoic acid, is an iodine-containing radiocontrast agent.  It is also used to kill tapeworms.
Diatrizoate is considered a high-osmolality contrast agent. Its osmolality ranges from approximately 1500 mOsm/kg (50% solution) to over 2000 mOsm/kg (76% solution).
Diatrizoic acid
Acetrizoic acid
Iotroxic acid
Succimer
Mersalyl acid
Charcoal
Edetate disodium
Meticrane