CAS No. 2569527-64-4

Batch: Purity:99.92
HM43239 Chemical Structure
Chemical Structure
Check the HM43239 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 5-chloro-N-[3-cyclopropyl-5-[[(3S,5R)-3,5-dimethylpiperazin-1-yl]methyl]phenyl]-4-(6-methyl-1H-indol-3-yl)pyrimidin-2-amine
CAS Number 2569527-64-4
Molecular Formula

C29H33ClN6

Molecular Weight (MW) 501.07
SMILES CC1CN(CC(C)N1)CC2=CC(=CC(=C2)NC3=NC=C(Cl)C(=N3)C4=C[NH]C5=C4C=CC(=C5)C)C6CC6
InChIKey FZLSDZZNPXXBBB-KDURUIRLSA-N

Ordering Information

Biological Activity

HM43239 is a potent small-molecule inhibitor of FMS-like tyrosine kinase 3 (FLT3), targeting wild-type FLT3 as well as internal tandem duplication (ITD) and tyrosine kinase domain (TKD) mutations. By suppressing FLT3 kinase signaling, it inhibits downstream STAT5, AKT, and ERK pathway activation. This targeted inhibition impairs leukemic cell proliferation and induces apoptosis in acute myeloid leukemia models driven by wild-type or mutant FLT3 signaling.

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
DMSO 50 mg/mL (99.78 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 12.5 mg/mL
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).
Note: Technical data last updated: Sep 1, 2026.