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iopamidol

n. An iodinated contrast agent.

Wikipedia
Iopamidol

Iopamidol ( INN, tradenames Iopamiro, Isovue, Iopamiron, and Niopam) is a nonionic, low-osmolar iodinated contrast agent, developed by Bracco.

It is available in various concentrations, from 200 to 370 mgI/mL.