Multinuclear complexes for X-ray imaging

Drug – bio-affecting and body treating compositions – In vivo diagnosis or in vivo testing – X-ray contrast imaging agent

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534 15, 534 16, 540474, 556 1, 556 8, 556 28, 556 31, 556 50, 556 61, 514184, 514492, 514836, A61K 4904

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059321903

ABSTRACT:
An x-ray contrast medium containing a multinuclear complex of the formula (M.sub.6 (.mu..sub.3 B).sub.8 A.sub.v).sub.x L.sub.w, wherein M is Mo, W, Re Tc, V, Nb, Ta, Ru, or Fe; .mu..sub.3 B represent a tridentate bridging atom; A is a non-bridging atom; L is a ligand coordinately bonded to at least one M atom; x is a positive integer; and v and w are independently zero or positive integers.

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