Molecular Weight: 437.54 g/mol

XL228 Chemical Structure
Chemical Structure
Check the XL228 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

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 88 mg/mL (201.12 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 30 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).

Chemical Information

IUPAC Name 4-N-(5-cyclopropyl-1H-pyrazol-3-yl)-6-(4-methylpiperazin-1-yl)-2-N-[(3-propan-2-yl-1,2-oxazol-5-yl)methyl]pyrimidine-2,4-diamine
CAS Number 898280-07-4
Molecular Formula

C22H31N9O
Molecular Weight (MW) 437.54
SMILES CC(C)C1=NOC(=C1)CNC2=NC(=CC(=N2)N3CCN(C)CC3)NC4=N[NH]C(=C4)C5CC5
InChIKey ALKJNCZNEOTEMP-UHFFFAOYSA-N

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