Abstract: This invention relates to a field of novel multi-headed compounds capable of binding and inhibiting the catalytic activity of human carbonic anhydrases for diagnostic, visualization, and treatment purposes. A series of compounds containing two or more of carbonic anhydrase inhibitors are linked together via short or long linker molecular moieties. Such dimeric or multimeric inhibitors are designed in such a way that one inhibitor molecule is able to reach several CA IX molecules on the surface of cancer cells. Such compounds are expected to have a significantly more powerful therapeutic effect and may be used for various strategies of specific compound deliveries to the desired site.