CAS No. 845272-21-1

Batch: Purity:98.75
Varlitinib Chemical Structure
Chemical Structure
Check the Varlitinib product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 4-N-[3-chloro-4-(1,3-thiazol-2-ylmethoxy)phenyl]-6-N-[(4R)-4-methyl-4,5-dihydro-1,3-oxazol-2-yl]quinazoline-4,6-diamine
CAS Number 845272-21-1
Molecular Formula

C22H19ClN6O2S

Molecular Weight (MW) 466.94
SMILES CC1COC(=N1)NC2=CC3=C(C=C2)N=CN=C3NC4=CC(=C(C=C4)OCC5=NC=CS5)Cl
InChIKey UWXSAYUXVSFDBQ-CYBMUJFWSA-N

Ordering Information

Biological Activity

Varlitinib is a potent dual inhibitor targeting ErbB1 (EGFR) and ErbB2 (HER2) receptor tyrosine kinases. By blocking ErbB receptor phosphorylation and activation, the compound suppresses downstream cell signaling through the AKT pathway. Consequently, this inhibition leads to diminished cellular proliferation, induction of apoptosis, and significant suppression of tumor growth in ErbB-overexpressing cancer models. [1][2]

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 6 mg/mL (12.84 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.