2D Structure
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2D chemical structural formula diagram.

3D Structure
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This 3D model represents a theoretically simulated conformation and is for reference only.

Check the Silmitasertib (CX-4945) sodium salt product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name sodium 5-(3-chloroanilino)benzo[c][2,6]naphthyridine-8-carboxylate
CAS Number 1309357-15-0
Molecular Formula

C19H11ClN3NaO2
Molecular Weight (MW) 371.75
SMILES C1=CC(=CC(=C1)Cl)NC2=NC3=C(C=CC(=C3)C(=O)[O-])C4=C2C=CN=C4.[Na+]
InChIKey ODDAAPQSODILSN-UHFFFAOYSA-M

How to Prepare Stock Solution?

Concentration Volume Mass
🧮 Molarity Calculator

Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 24 mg/mL (64.55 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.