FIELD: chemistry.
SUBSTANCE: present invention relates to novel compounds which contain two bonded iodinated phenyl group of general formula R-N(CHO)-X-N(R3)-R (I), where R, R3 and X assume values given in the claim, as well as use as contrast agents in diagnostic X-ray imaging, and X-ray diagnostic compositions containing such compounds.
EFFECT: obtaining novel contrast agents.
15 cl, 22 ex
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