Sterling Winthrop Inc.

Dennis E Butterfield

John L Toner

Robert A Snow

David L Ladd

Julia S Tan

Dennis K Fujii

A composition suitable for use in diagnostic imaging or as a cell killing agent comprising a chelating residue linked via an amide linkage to a poly(alkylene oxide) moiety, said compisition having a molecular weight of at least 4,500; ##STR1## wherein: Z is a chelating residue;

Segmented chelating polymers as imaging and therapeutic agents

A composition suitable for use in diagnostic imaging or as a cell killing agent comprising a chelating residue linked via an amide linkage to a poly(alkylene oxide) moiety, said composition having a molecular weight of at least 4,500; ##STR1## wherein: Z is a chelating residue;

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Rochester, NY, United States of America

Dennis E Butterfield