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Claims for Patent: 4,001,323

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Claims for Patent: 4,001,323

Title: Water-soluble, non-ionizing hydroxy-containing amide derivatives of 2,4,6-triiodo-isophthalic acid
Abstract:Compounds of the formula ##STR1## wherein R and R.sub.1 are 1,3-dihydroxyisopropyl or 2,3-dihydroxypropyl, and R.sub.2 is hydrogen or hydroxyl, are readily water-soluble and of sufficiently low toxicity for use as radiopaque materials in the radiography of body cavities as in urography, angiography, ventriculography, and myelography.
Inventor(s): Felder; Ernst (Riva S. Vitale, CH), Pitre; David E. (Milan, IT)
Assignee: Savac AG (Chur, CH)
Application Number:05/634,836
Patent Claims: 1. A compound of the formula ##STR3## wherein R and R.sub.1 are members of the group consisting of 1,3-dihydroxyisopropyl and 2,3-dihydroxypropyl.

2. A compound as set forth in claim 1, wherein each of said R and R.sub.1 is 1,3-dihydroxyisopropyl.

3. A compound as set forth in claim 2, which is optically active.
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