Chemical Structure : PLK1 inhibitor B9
Catalog No.: PC-27199Not For Human Use, Lab Use Only.
PLK1 inhibitor B9 is a potent, selective, covalent inhibitor of polo-like kinase 1 (PLK1) with IC50 of 19 nM, shows exceptional cellular potency with IC50 of 0.4 nM in K562 leukemia cells.
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PLK1 inhibitor B9 is a potent, selective, covalent inhibitor of polo-like kinase 1 (PLK1) with IC50 of 19 nM, shows exceptional cellular potency with IC50 of 0.4 nM in K562 leukemia cells.
B9 shows >150-fold improvement over the reversible reference compound BI2536 (K562 cell IC50=61 nM).
K562 shows favorable overall selectivity against nonrelated kinases.
B9 (10-20 mg/kg, i.p.) significantly suppressed the bioluminescence of leukemia burden and extended survival rates to 100% over 42 days without observable toxicity.
| M.Wt | 551.62 | |
| Formula | C28H34FN7O4 | |
| Appearance | Solid | |
| Storage |
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| Solubility |
10 mM in DMSO |
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1. Zhou J, et al. J Med Chem. 2026 Jun 30. doi: 10.1021/acs.jmedchem.6c01512.

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