Molecular Weight: 232.15 g/mol

CNQX Chemical Structure
Chemical Structure
Check the CNQX 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 46 mg/mL (198.14 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).

Chemical Information

IUPAC Name 7-nitro-2,3-dioxo-1,4-dihydroquinoxaline-6-carbonitrile
CAS Number 115066-14-3
Molecular Formula

C9H4N4O4

Molecular Weight (MW) 232.15
SMILES [O-][N+](=O)C1=CC2=C(NC(=O)C(=O)N2)C=C1C#N
InChIKey RPXVIAFEQBNEAX-UHFFFAOYSA-N
Note: Technical data last updated: Sep 1, 2026.