(RS)-AMPA
Based on 1 Customer Validation
(RS)-AMPA ((±)-AMPA) is a glutamate analogue and a potent and selective excitatory neurotransmitter L-glutamic acid agonist. (RS)-AMPA does not interfere with binding sites for kainic acid or NMDA receptors.
For research use only. We do not sell to patients.
- Purity: 99.82%
- CAS No.: 77521-29-0
- Formula: C7H10N2O4
- Molecular Weight:186.17
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Storage:Powder -20°C, 3 years ; In solvent -80°C, 6 months , -20°C, 1 month
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Help & FAQs
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Biological Activity
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| HEK293 | EC50 |
16 μM
Compound: (R,S)-AMPA
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Agonist activity at rat recombinant GluA4 receptor flip isoform expressed in HEK293 cells assessed as effect on cyclothiazide-induced calcium flux by Fluo-4/AM staining-based fluorescence assay
Agonist activity at rat recombinant GluA4 receptor flip isoform expressed in HEK293 cells assessed as effect on cyclothiazide-induced calcium flux by Fluo-4/AM staining-based fluorescence assay
|
[PMID: 20096591] |
| HEK293 | EC50 |
37 μM
Compound: (R,S)-AMPA
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Agonist activity at rat recombinant GluA3 receptor flip isoform expressed in HEK293 cells assessed as effect on cyclothiazide-induced calcium flux by Fluo-4/AM staining-based fluorescence assay
Agonist activity at rat recombinant GluA3 receptor flip isoform expressed in HEK293 cells assessed as effect on cyclothiazide-induced calcium flux by Fluo-4/AM staining-based fluorescence assay
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[PMID: 20096591] |
| HEK293 | EC50 |
53 μM
Compound: (R,S)-AMPA
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Agonist activity at rat recombinant GluA1 receptor flip isoform expressed in HEK293 cells assessed as effect on cyclothiazide-induced calcium flux by Fluo-4/AM staining-based fluorescence assay
Agonist activity at rat recombinant GluA1 receptor flip isoform expressed in HEK293 cells assessed as effect on cyclothiazide-induced calcium flux by Fluo-4/AM staining-based fluorescence assay
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[PMID: 20096591] |
| HEK293 | EC50 |
67 μM
Compound: (R,S)-AMPA
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Agonist activity at rat recombinant GluA2 receptor flip isoform expressed in HEK293 cells assessed as effect on cyclothiazide-induced calcium flux by Fluo-4/AM staining-based fluorescence assay
Agonist activity at rat recombinant GluA2 receptor flip isoform expressed in HEK293 cells assessed as effect on cyclothiazide-induced calcium flux by Fluo-4/AM staining-based fluorescence assay
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[PMID: 20096591] |
| Oocyte | EC50 |
1.4 μM
Compound: (R,S)-AMPA
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Agonist activity at rat recombinant GluA3 receptor flop isoform expressed in Xenopus oocytes
Agonist activity at rat recombinant GluA3 receptor flop isoform expressed in Xenopus oocytes
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[PMID: 20096591] |
| Oocyte | EC50 |
1.4 μM
Compound: 1 (AMPA)
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Effective concentration of compound was determined for electrophysiological properties on Ionotropic glutamate receptor AMPA 3 (GluR3) using rat cortical slice model in Xenopus laevis oocytes
Effective concentration of compound was determined for electrophysiological properties on Ionotropic glutamate receptor AMPA 3 (GluR3) using rat cortical slice model in Xenopus laevis oocytes
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[PMID: 12747796] |
| Oocyte | EC50 |
3.31 μM
Compound: (R,S)-AMPA
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Agonist activity at recombinant GluA1A2 receptor flip isoform expressed in Xenopus oocytes
Agonist activity at recombinant GluA1A2 receptor flip isoform expressed in Xenopus oocytes
|
[PMID: 20096591] |
| Oocyte | EC50 |
5.01 μM
Compound: (R,S)-AMPA
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Agonist activity at recombinant GluA2A4 receptor flip isoform expressed in Xenopus oocytes
Agonist activity at recombinant GluA2A4 receptor flip isoform expressed in Xenopus oocytes
|
[PMID: 20096591] |
| Oocyte | EC50 |
8.7 μM
Compound: (R,S)-AMPA
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Agonist activity at rat recombinant GluA1 receptor flop isoform expressed in Xenopus oocytes
Agonist activity at rat recombinant GluA1 receptor flop isoform expressed in Xenopus oocytes
|
[PMID: 20096591] |
| Oocyte | EC50 |
8.7 μM
Compound: 1 (AMPA)
|
Effective concentration of compound was determined for electrophysiological properties on Ionotropic glutamate receptor AMPA 1 using rat cortical slice model in Xenopus laevis oocytes
Effective concentration of compound was determined for electrophysiological properties on Ionotropic glutamate receptor AMPA 1 using rat cortical slice model in Xenopus laevis oocytes
|
[PMID: 12747796] |
(RS)-AMPA (10-3-10-4 M) causes depolarizations of cultured rat spinal and brainstem neurones. The depolarization by (RS)-AMPA is clearly dose-dependent, although there is a great variability of effects between individual neurones. Application of (RS)-AMPA at 10-5 M produces only small depolarizations (3-7 mV), whereas at 10-4 M, the amplitudes of the depolarizations ranged from 4 to 33 mV. (RS)-AMPA also causes an increase of the discharge rate of spontaneously firing neurones or sometimes evoked a short burst of action potentials in silent cells. (RS)-AMPA exerts its depolarizing effects by activating glutamate/quisqualate receptors without affecting NMDA receptors[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 77521-29-0
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Appearance Solid
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Molecular Weight 186.17
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Formula C7H10N2O4
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Color White to off-white
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SMILES
O=C1C(CC(N)C(O)=O)=C(C)ON1
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Synonyms
(±)-AMPA
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years In solvent -80°C 6 months -20°C 1 month
Solvent & Solubility
H2O : 100 mg/mL (537.14 mM; Need ultrasonic)
DMSO : 5 mg/mL (26.86 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
Select the appropriate dissolution method based on your experimental animal and administration route.
- For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
- To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.
- The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 0.5 mg/mL (2.69 mM); Clear solution
This protocol yields a clear solution of ≥ 0.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (5.0 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.
Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 0.5 mg/mL (2.69 mM); Clear solution
This protocol yields a clear solution of ≥ 0.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (5.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Working solution concentration: 0.22 mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
Purity & Documentation
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Data Sheet (275 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Portuguese - PT (393 KB)
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Handling Instructions (2659 KB)
References
[1]. Hösli L, et al. Effects of the glutamate analogue AMPA and its interaction with antagonists on cultured rat spinal and brain stem neurones. Neurosci Lett. 1983 Mar 28;36(1):59-62. [Content Brief]
[2]. Sommer B, et al. Flip and flop: a cell-specific functional switch in glutamate-operated channels of the CNS. Science. 1990 Sep 28;249(4976):1580-5. [Content Brief]
Complete Stock Solution Preparation Table
Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
|---|---|---|---|---|---|
| DMSO / H2O | 1 mM | 5.3714 mL | 26.8572 mL | 53.7143 mL | 134.2859 mL |
| 5 mM | 1.0743 mL | 5.3714 mL | 10.7429 mL | 26.8572 mL | |
| 10 mM | 0.5371 mL | 2.6857 mL | 5.3714 mL | 13.4286 mL | |
| 15 mM | 0.3581 mL | 1.7905 mL | 3.5810 mL | 8.9524 mL | |
| 20 mM | 0.2686 mL | 1.3429 mL | 2.6857 mL | 6.7143 mL | |
| 25 mM | 0.2149 mL | 1.0743 mL | 2.1486 mL | 5.3714 mL | |
| H2O | 30 mM | 0.1790 mL | 0.8952 mL | 1.7905 mL | 4.4762 mL |
| 40 mM | 0.1343 mL | 0.6714 mL | 1.3429 mL | 3.3571 mL | |
| 50 mM | 0.1074 mL | 0.5371 mL | 1.0743 mL | 2.6857 mL | |
| 60 mM | 0.0895 mL | 0.4476 mL | 0.8952 mL | 2.2381 mL | |
| 80 mM | 0.0671 mL | 0.3357 mL | 0.6714 mL | 1.6786 mL | |
| 100 mM | 0.0537 mL | 0.2686 mL | 0.5371 mL | 1.3429 mL |
* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.
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