Quizartinib (AC220) is a second-generation FLT3 inhibitor for Flt3(ITD/WT) with IC50 of 1.1 nM/4.2 nM in MV4-11 and RS4;11 cells, respectively, 10-fold more selective for Flt3 than KIT, PDGFR?, PDGFR?, RET, and CSF-1R. Quizartinib (AC220) induces apoptosis of tumor cells. Phase 3. *For Research & Development use only. Product is not intended for drug, household, or human consumption.