Displaying 8 results of Midostaurin Stable Isotopes Midostaurin is a tyrosine kinase inhibitor used in the treatment of acute myeloid leukemia and systemic mastocytosis. Stable isotopes of midostaurin are non-radioactive forms of the drug that can be used for research purposes, including drug metabolism studies and drug interaction studies. These stable isotopes are chemically identical to the naturally occurring form of midostaurin, but they contain a specific number of neutrons that make them useful for isotopic labeling.