Iron-based contrast agent

Drug – bio-affecting and body treating compositions – In vivo diagnosis or in vivo testing

Reexamination Certificate

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C424S009320

Reexamination Certificate

active

07807137

ABSTRACT:
A contrast agent having a metal core and an inert shell forming a single cluster is disclosed. The metal core is iron-based and has an octa-nuclear structure. It is surrounded by a cluster of pyrazolate groups. Ligands can be attached to the cluster to provide water solubility and to target specific tissues or provide specific contrast properties.

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