CAS No. 1421227-52-2

Batch: Purity:99.04
WS3 Chemical Structure
Chemical Structure
Check the WS3 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name N-[6-[4-[[4-[(4-methylpiperazin-1-yl)methyl]-3-(trifluoromethyl)phenyl]carbamoylamino]phenoxy]pyrimidin-4-yl]cyclopropanecarboxamide
CAS Number 1421227-52-2
Molecular Formula

C28H30F3N7O3

Molecular Weight (MW) 569.58
SMILES CN1CCN(CC1)CC2=C(C=C(C=C2)NC(=O)NC3=CC=C(C=C3)OC4=NC=NC(=C4)NC(=O)C5CC5)C(F)(F)F
InChIKey KIKOYRNAERIVSJ-UHFFFAOYSA-N

Ordering Information

Biological Activity

WS3 is a small-molecule inducer of pancreatic beta cell proliferation that targets Erb3 binding protein-1 (EBP1) and modulates the IkB kinase pathway. By interacting with EBP1 and regulating downstream IKK and NF-kB signaling pathways, WS3 promotes cell cycle progression and replication of primary rat and human pancreatic beta cells without triggering loss of cellular function or phenotype.

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 100 mg/mL (175.56 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 80 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).

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