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 CX-6258 HCl product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name (3E)-5-chloro-3-[[5-[3-(4-methyl-1,4-diazepane-1-carbonyl)phenyl]furan-2-yl]methylidene]-1H-indol-2-one;hydrochloride
CAS Number 1353859-00-3
Molecular Formula

C26H24ClN3O3.HCl
Molecular Weight (MW) 498.40
SMILES CN1CCCN(CC1)C(=O)C2=CC=CC(=C2)C3=CC=C(O3)C=C4C5=C(C=CC(=C5)Cl)NC4=O.Cl
InChIKey YYIMMVXTWBIEAG-YHLMHSEJSA-N

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 25 mg/mL (50.16 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 2 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.