title: 125I-labelled cobalamin derivative compatible with intrinsic factor.
mesh_terms: D002264:Carboxylic Acids; D055598:Chemical Phenomena; D002621:Chemistry; D003037:Cobalt Radioisotopes; D006632:Histamine; D007437:Intrinsic Factor / Q000378:metabolism*; D007457:Iodine Radioisotopes; D007553:Isotope Labeling; D008722:Methods; D011485:Protein Binding; D011933:Reagent Kits, Diagnostic; D014805:Vitamin B 12 / Q000031:analogs & derivatives* / Q000378:metabolism
chemical_list: D002264:Carboxylic Acids; D003037:Cobalt Radioisotopes; D007457:Iodine Radioisotopes; D011933:Reagent Kits, Diagnostic; D006632:Histamine; D007437:Intrinsic Factor; D014805:Vitamin B 12