CAS No. 755038-02-9

Batch: Purity:99.88
BI 2536 Chemical Structure
Chemical Structure
Check the BI 2536 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 4-[[(7R)-8-cyclopentyl-7-ethyl-5-methyl-6-oxo-7H-pteridin-2-yl]amino]-3-methoxy-N-(1-methylpiperidin-4-yl)benzamide
CAS Number 755038-02-9
Molecular Formula

C28H39N7O3

Molecular Weight (MW) 521.66
SMILES CCC1C(=O)N(C2=CN=C(N=C2N1C3CCCC3)NC4=C(C=C(C=C4)C(=O)NC5CCN(CC5)C)OC)C
InChIKey XQVVPGYIWAGRNI-JOCHJYFZSA-N

Ordering Information

Biological Activity

BI 2536 is a small-molecule inhibitor of Polo-like kinase 1 (Plk1) with an IC50 of, while also targeting Plk2 and Plk3. Selective Plk1 inhibition disrupts cell cycle progression during mitosis, leading to mitotic arrest, failure of cytokinesis, and induction of apoptosis in diverse tumor cell lines. [1]

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
Ethanol 104 mg/mL
DMSO 96 mg/mL (184.02 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water Insoluble
FAQ
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
  • Preheat media/saline to 37°C.
  • Mix rapidly (pipette/vortex) upon addition.
  • For complex mixes, always add the aqueous phase last.
  • Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).

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Note: Technical data last updated: Sep 1, 2026.