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5mg |
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25mg |
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50mg |
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100mg |
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500mg |
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Purity: ≥98%
NBQX (also known as FG9202) is a novel and potent antagonist of aminomethylphosphonic acid receptor (AMPAR) with IC50 of 0.7 ± 0.1 μM. It has the potential to treat seizure. Brief NBQX administration during the 48 h postseizure in P10 Long-Evans rats suppresses transient mTOR pathway activation and attenuates spontaneous recurrent seizures, social preference deficits, and mossy fiber sprouting observed in vehicle-treated adult rats after early life seizures. These results suggest that acute AMPAR antagonist treatment during the latent period immediately following neonatal HS can modify seizure-induced activation of mTOR, reduce the frequency of later-life seizures, and protect against CA3 mossy fiber sprouting and autistic-like social deficits.
ln Vitro |
NBQX (FG9202) exhibits strong affinity for AMPA and kainate binding sites and little or no affinity for the glutamate recognition site on the NMDA receptor complex [1].
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ln Vivo |
For three days, NBQX (FG9202; 20 mg/kg, i.p.) lessens PTZ-induced seizures[2]. In an intravenous bolus dose of 30 mg/kg at the time of MCA blockage and again an hour later, NBQX proved neuroprotective in a rat focal ischemia model [1].
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Animal Protocol |
Animal/Disease Models: Male Wistar rats that weighed 220-240 g with pentylenetetrazole (PTZ)[2]
Doses: 20 mg/kg Route of Administration: IP; for 3 days Experimental Results: Effectively reversed the behavioral abnormality of epileptic seizures of chronic PTZ administration (50mg/ kg; ip; for 28 days) in rats. |
References |
[1]. Fukushima K, et al. Characterization of Human Hippocampal Neural Stem/Progenitor Cells and Their Application to Physiologically Relevant Assays for Multiple Ionotropic Glutamate Receptors. J Biomol Screen. 2014 Sep; 19(8):1174-84.
[2]. Wen Chen, et al. AMPA Receptor Antagonist NBQX Decreased Seizures by Normalization of Perineuronal Nets. PLoS One. 2016 Nov 23;11(11):e0166672. |
Molecular Formula |
C12H8N4O6S
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Molecular Weight |
336.28
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CAS # |
118876-58-7
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Related CAS # |
NBQX disodium;479347-86-9
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Appearance |
Typically exists as solids (or liquids in special cases) at room temperature
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SMILES |
S(C1=C([H])C([H])=C([H])C2=C3C(=C([H])C(=C21)[N+](=O)[O-])N([H])C(C(N3[H])=O)=O)(N([H])[H])(=O)=O
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Chemical Name |
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Synonyms |
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HS Tariff Code |
2934.99.9001
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Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
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Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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Solubility (In Vitro) |
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Solubility (In Vivo) |
Solubility in Formulation 1: ≥ 2.5 mg/mL (7.43 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL. Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution. Solubility in Formulation 2: ≥ 2.5 mg/mL (7.43 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution. For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly. Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. View More
Solubility in Formulation 3: ≥ 2.5 mg/mL (7.43 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution. |
Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
1 mM | 2.9737 mL | 14.8686 mL | 29.7371 mL | |
5 mM | 0.5947 mL | 2.9737 mL | 5.9474 mL | |
10 mM | 0.2974 mL | 1.4869 mL | 2.9737 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration: mg/mL;
Method for preparing DMSO stock solution: mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation::Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.