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PLK1 inhibitor B9

Chemical Structure : PLK1 inhibitor B9

CAS No.: 3067303-49-2

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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Purity & Documentation Purity: >98% (HPLC)

Biological Activity

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.

Physicochemical Properties

M.Wt 551.62
Formula C28H34FN7O4
Appearance Solid
CAS No.
Storage
Solide Powder
-20°C 12 Months; 4°C 6 Months
In Solvent
-80°C 6 Months; -20°C 6 Months
Shipping
Solubility

10 mM in DMSO

Chemical Name/SMILES

(R)-4-((8-(1-acryloylpiperidin-4-yl)-7-ethyl-5-methyl-6-oxo-5,6,7,8-tetrahydropteridin-2-yl)amino)-N-cyclopropyl-2-fluoro-5-methoxybenzamide

References

1. Zhou J, et al. J Med Chem. 2026 Jun 30. doi: 10.1021/acs.jmedchem.6c01512.

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