Skip to main content
An official website of the United States government
NIH Websites Are Changing
Per Executive Order 14434, federal agencies are now using "Super Intelligence" (SI) in place of "Artificial Intelligence" (AI). You may see both terms across NIH content during this transition.

iodine I 124 iodo-azomycin galactopyranoside

A diagnostic radiopharmaceutical comprised of iodo-azomycin galactopyranoside (IAZGP) labeled with the positron-emitting radioisotope iodine I 124 and used as an imaging agent. Iodine I 124 iodo-azomycin galactopyranoside (I-124 IAZGP) is reduced under hypoxic conditions, covalently binding to macromolecules in hypoxic cells. After incorporation into hypoxic tumor cell DNA, I-124 IAZGP can be localized and quantified using positron emission tomography (PET), allowing a quantitative assessment of hypoxic tumor burden. IAZGP appears to have a higher water solubility and faster clearance from normal tissue than traditional imidazole tracers.
Abbreviation:I-124 IAZGP
Search NCI's Drug Dictionary