Strontium chloride Sr-89

Strontium chloride 89, a similar to calcium divalent ion, concentrates in areas of increased osteogenesis, by being taken up into the inorganic matter of the bone. Strontium chloride 89 presents a 10-fold higher affinity for metastatic bone. Some reports indicate that after Strontium chloride 89 is incorporated into the osteoid matrix adjascently to the metastatic cells, it emits β-rays getting even to 1.3-64Gy. Thus, there is a possible tumoricidal effect driven by the radiation selectively emited by strontium chloride 89 into metastatic bones.