CAS No. 1257704-57-6

Batch: Purity:99.79
CEP-33779 Chemical Structure
Chemical Structure
Check the CEP-33779 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name N-[3-(4-methylpiperazin-1-yl)phenyl]-8-(4-methylsulfonylphenyl)-[1,2,4]triazolo[1,5-a]pyridin-2-amine
CAS Number 1257704-57-6
Molecular Formula

C24H26N6O2S

Molecular Weight (MW) 462.57
SMILES CN1CCN(CC1)C2=CC=CC(=C2)NC3=NN4C=CC=C(C4=N3)C5=CC=C(C=C5)S(=O)(=O)C
InChIKey RFZKSQIFOZZIAQ-UHFFFAOYSA-N

Ordering Information

Biological Activity

CEP-33779 is a selective JAK2 inhibitor (IC50 1.8 nM) displaying over 40-fold selectivity against JAK1 and over 800-fold selectivity against TYK2. By targeting JAK2, it blocks the JAK/STAT signaling pathway through inhibition of STAT3 and STAT5 phosphorylation. This targeted inhibition suppresses downstream cytokine signaling, leading to reduced cell proliferation and diminished inflammatory phenotypes in preclinical models.

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 93 mg/mL (201.05 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water Insoluble
Ethanol 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.