NBQX DISODIUM SALT
Synonym(s):1,2,3,4-Tetrahydro-6-nitro-2,3-dioxo-benzo[f]quinoxaline-7-sulfonamide disodium salt hydrate;1,2,3,4-Tetrahydro-6-nitro-2,3-dioxo-benzo[f]quinoxaline-7-sulfonamide hydrate;FG 9202;FG 9202 disodium salt hydrate
- CAS NO.:118876-58-7
- Empirical Formula: C12H8N4O6S
- Molecular Weight: 336.28
- MDL number: MFCD00274065
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-03-13 23:13:44
What is NBQX DISODIUM SALT?
Chemical properties
Yellow Crystalline Solid
The Uses of NBQX DISODIUM SALT
NBQX disodium salt hydrate has been used:
- in N-methyl-D-aspartate receptor (NMDAR) kinetic studies
- as an α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor antagonist for the electrophysiological studies cultured neurons
- in the extracellular solution for current/voltage (I/V) relationship and rectification index experiments in excitatory postsynaptic currents (EPSCs) mediated by NMDA receptors (EPSCNMDAR)
The Uses of NBQX DISODIUM SALT
A potent and discriminating antagonist for AMPA binding sites. This compound has neuroprotective properties.
Definition
ChEBI: 2,3-Dioxo-6-nitro-7-sulfamoylbenzo(f)quinoxaline is a member of naphthalenes and a sulfonic acid derivative.
General Description
NBQX [2,3-dihydroxy-6-nitro-7-sulphamoyl-benzo(F)quinoxaline] is a competitive antagonist, which shows high affinity to 2-amino-3-hydroxy-5-methyl-4-isoxazol propionic acid (AMPA) receptor than kainite receptor.
Biological Activity
Potent, selective and competitive AMPA receptor antagonist. Neuroprotective and anticonvulsant; active in vivo . More water soluble disodium salt of NBQX (2,3-Dioxo-6-nitro-1,2,3,4-tetrahydrobenzo[f]quinoxaline-7-sulfonamide ). Also available as part of the AMPA Receptor Tocriset™ .
Biochem/physiol Actions
NBQX [2,3-dihydroxy-6-nitro-7-sulphamoyl-benzo(F)quinoxaline], an anticonvulsant provides protection against white matter damage in spinal cord crush injury and also protects oligodendrocyte in experimental autoimmune encephalomyelitis (EAE). However, its role in preventing inflammation in EAE is not yet clear.
Storage
Room temperature
Properties of NBQX DISODIUM SALT
| Melting point: | 361°C |
| Density | 1.6027 (rough estimate) |
| refractive index | 1.6000 (estimate) |
| storage temp. | Inert atmosphere,2-8°C |
| solubility | methanol: 0.25 mg/mL |
| form | solid |
| pka | 7.55±0.20(Predicted) |
| color | yellow |
| Stability: | Freezer at -20°C |
Safety information for NBQX DISODIUM SALT
| Signal word | Warning |
| Pictogram(s) |
![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for NBQX DISODIUM SALT
| InChIKey | UQNAFPHGVPVTAL-UHFFFAOYSA-N |
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