CNQX disodium

SKU: orb1220130

Description

CNQX disodium is a competitive non-NMDA receptor antagonist and competitive AMPA/kainate receptor antagonist in neuronal cultures.The ED50 for CNQX was 45.9+/-4.65 microg, respectively. Intrathecal injection of a combination of CNQX and gabapentin produced a strong synergistic antiallodynic effect in neuropathic rats.

Key Properties

• CAS Number: 479347-85-8
• MW: 276.12
• Purity: >98% (HPLC)
• Formula: C₉H₂N₄Na₂O₄?
• SMILES: [Na+].[Na+].[O-]c1nc2cc(C#N)c(cc2nc1[O-])[N+]([O-])=O
• Target: iGluR
• Solubility: In Vitro: DMSO : 10.53 mg/mL (38.14 mM)

Bioactivity

• In Vivo:
  CNQX disodium (FG9065 disodium; 0.75-3 mg/kg; IP; 20 min before testing) decreased the number of cocaine responses in a dose-dependent manner during the first 15-min cocaine-free interval. The bilateral infusion of CNQX disodium (0.5 or 1.25 μg) into the amygdala or dorsal hippocampus 10 min prior to a retention test partially blocks the expression of stepdown inhibitory avoidance in rats 24 h after training. CNQX disodium causes a complete blockade at a dose of 0.5 μg. Animal model: Male Wistar rats weighing 180-200 g. Dosage: 0.75, 1.5, and 3 mg/kg. Administration: IP; 20 min before testing. Result: Decreased the number of cocaine (IV; 0.25 mg/infusion) responses in a dose-dependent manner during the first 15-min cocaine-free interval.
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• In Vitro:
  CNQX disodium (FG9065 disodium; 2-5 μM) reversibly blocks the Schaffer collateral and mossy fibre excitatory postsynaptic potential (EPSP), while sparing the fast and slow GABA-mediated inhibition in superfusion of hippocampal slices. CNQX disodium (1-5 μM) produces a selective and dose-dependent reduction in the amplitude of the monosynaptic component of the DR-VRR recorded from lumbar spinal segments.
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Storage & Handling

• Storage: Storage temperature: -20°C. Stability: ≥ 2 years
• Expiration Date: 12 months from date of receipt.
• Disclaimer: For research use only

Quick Database Links

Gene Symbol

iGluR