Sterling Winthrop Inc.

Eastman-Kodak Company

Shaughnessy Robinson

Carl R Illig

Edward R Bacon

Eugene Rex Cooper

John L Toner

Kurt A Josef

Brent D Douty

Paul P Spara

Kimberly G Estep

Thomas J Caulfield

Donald A Upson

Baldev Singh

Bacon, Edward R

Disclosed are contrast agents of the formula ##STR1## contained in aqueous compositions and methods for their use in diagnostic radiology of the gastrointestinal tract wherein

Compositions of iodophenoxy alkanes and iodophenyl ethers for

Compounds having the structure ##STR1## wherein (Z--COO is the residue of an iodinated aromatic acid; n is an integer from 0 to 20; R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are independently H, alkyl, fluoroalkyl, cycloalkyl, aryl, aralkyl, alkoxy, aryloxy, halogen, hydroxy, acylamino, acetamidoalkyl, acetamidoaryl, --COO-alkyl, --COO-aryl, --COO-aralkyl, --CO-alkyl, --CO-aryl, --CO-heterocyclyl, cyano or heterocyclyl; R.sup.5 is H, alkyl, fluoroalkyl, cycloalkyl, aryl, aralkyl, alkoxyalkyl, heterocyclyl, or a Z-CO.sub.2 -CR.sup.1 R.sup.2 (CR.sup.3 R.sup.4).sub.n group, wherein Z, R.sup.1, R.sup.2, R.sup.3, R.sup.4 and n are as defined above, m is an integer from 0 to 10, p is an integer from 0 to 10, and m+p.gtoreq.1 are useful as contrast agents in x-ray imaging compositions and methods.

Iodinated aroyloxy ketones

Disclosed are x-ray contrast compositions for oral or retrograde examination of the gastrointestinal tract comprising a polymeric material capable of forming a coating on the gastrointestinal tract and an x-ray producing agent of the formula ##STR1## and methods for their use in diagnostic radiology of the gastrointestinal tract wherein

Compositions of iodophenoxy alkanes and iodophenyl ethers in

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Shaughnessy Robinson