Retigabine
Retigabine (CAS 150812-12-7) is a positive allosteric modulator of neuronal potassium channels KCNQ2-5 (K_V7.2-7.5). By enhancing channel opening, retigabine stabilizes neuronal membrane potentials, thereby reducing excitability. Reported EC_50 values are 1.4 μM for KCNQ3/5, 1.6 μM for KCNQ2/3, and 5.2 μM for KCNQ4 subunits. Due to this activity, retigabine serves as an anticonvulsant agent in epilepsy research. Additionally, mutations in KCNQ2/3 channels are linked clinically to benign familial neonatal convulsions, highlighting retigabine's relevance in investigating neuronal channelopathies and seizure mechanisms.
| Physical Appearance | A solid |
| Storage | Store at -20°C |
| M.Wt | 303.33 |
| Cas No. | 150812-12-7 |
| Formula | C16H18FN3O2 |
| Solubility | insoluble in H2O; ≥11.1 mg/mL in EtOH with ultrasonic; ≥12.95 mg/mL in DMSO |
| Chemical Name | (E)-ethyl hydrogen (2-amino-4-((4-fluorobenzyl)amino)phenyl)carbonimidate |
| SDF | Download SDF |
| Canonical SMILES | CCO/C(O)=N/C1=C(N)C=C(NCC2=CC=C(F)C=C2)C=C1 |
| Shipping Condition | Small Molecules with Blue Ice, Modified Nucleotides with Dry Ice. |
| General tips | We do not recommend long-term storage for the solution, please use it up soon. |
| Cell experiment:[2] | |
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Cell lines |
HEK293 cells transfected with KV2.1 |
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Reaction Conditions |
0.1, 0.3, 1 or 3?μM retigabine for 4 h incubation |
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Applications |
Retigabine reduced the KV2.1 current density in a concentration-dependent manner. The current density was significantly reduced by approximately 2.5-fold after exposure to 1 and 3 μM retigabine. Thus, KV2.1 was identified as a new molecular target for retigabine, with the potential to further explain retigabine's neuroprotective properties. |
| Animal experiment:[3] | |
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Animal models |
DBA/2 mice |
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Dosage form |
0.5 ~ 20 mg/kg Intraperitoneal administration |
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Applications |
Retigabine exhibited an additive effect when administered in combination with classical anticonvulsants, most notably diazepam, phenobarbital, phenytoin as well as valproate. |
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Note |
The technical data provided above is for reference only. |
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References: 1. Gunthorpe MJ, Large CH, Sankar R. The mechanism of action of retigabine (ezogabine), a first-in-class K+ channel opener for the treatment of epilepsy. Epilepsia, 2012, 53(3): 412-424. 2. Stas JI, Bocksteins E, Jensen CS, et al. The anticonvulsant retigabine suppresses neuronal KV2-mediated currents. Scientific Reports, 2016, 6: 35080. 3. De Sarro G, Di Paola ED, Conte G, et al. Influence of retigabine on the anticonvulsant activity of some antiepileptic drugs against audiogenic seizures in DBA/2 mice. Naunyn-Schmiedeberg's Archives of Pharmacology, 2001, 363(3): 330-336. |
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Quality Control & MSDS
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Chemical structure
