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OSK-1 is a potent potassium channel blocker belonging to the α-KTx3 toxins. It exhibits IC50 values of 0.6 nM, 5.4 nM, and 0.014 nM for Kv1.1, Kv1.2, and Kv1.3 channels, respectively. Additionally, OSK-1 acts as a moderate blocker of the calcium-activated KCa3.1 channel, with an IC50 of 225 nM. Consequently, OSK-1 finds application as an immunosuppressive drug.

| Pack Size | Price | Availability | Quantity | 
|---|---|---|---|
| 25 mg | $1,520 | Backorder | 
| Description | OSK-1 is a potent potassium channel blocker belonging to the α-KTx3 toxins. It exhibits IC50 values of 0.6 nM, 5.4 nM, and 0.014 nM for Kv1.1, Kv1.2, and Kv1.3 channels, respectively. Additionally, OSK-1 acts as a moderate blocker of the calcium-activated KCa3.1 channel, with an IC50 of 225 nM. Consequently, OSK-1 finds application as an immunosuppressive drug. | 
| Targets&IC50 |  Kv1.1 channel:0.6 nM (IC50), Kv1.3 channel:0.014 nM (IC50), Kv1.2 channel:5.4 nM (IC50), KCa3.1:225 nM (IC50) | 
| In vitro | OSK1 does not influence the K Ca 2.1, K Ca 2.2, K Ca 2.3, and K Ca 1.1 channels at micromolar concentrations, but exhibits moderate activity on the K Ca 3.1 channel (also known as IK1 or SK4), with an IC50 value of 225 nM[1]. | 
| In vivo | OSK1, when administered through intracerebroventricular injection, is lethal to mice, exhibiting a 50% lethal dose (LD 50) value of 2 μg/kg[1]. | 
| Cas No. | 183815-75-0 | 
| Relative Density. | no data available | 
| Storage | keep away from moisture | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | 
 For example, your dosage is 10 mg/kg Each animal weighs 20 g, and the dosage volume is 100 μL .
For example, your dosage is 10 mg/kg Each animal weighs 20 g, and the dosage volume is 100 μL .  A total of 10 animals were administered, and the formula you used is 5%
 A total of 10 animals were administered, and the formula you used is 5%  DMSO+30% PEG300+5% Tween 80+60% Saline/PBS/ddH2O. So your working solution concentration is 2 mg/mL。
DMSO+30% PEG300+5% Tween 80+60% Saline/PBS/ddH2O. So your working solution concentration is 2 mg/mL。 (mother liquor concentration of 40 mg/mL), if you need to configure a concentration that exceeds the solubility of the product, please contact us first.
 (mother liquor concentration of 40 mg/mL), if you need to configure a concentration that exceeds the solubility of the product, please contact us first. main solution, add 300 μLPEG300
 main solution, add 300 μLPEG300 mix well and clarify, then add 50 more μL Tween 80, mix well and clarify, then add 600 more μLSaline/PBS/ddH2O
 mix well and clarify, then add 50 more μL Tween 80, mix well and clarify, then add 600 more μLSaline/PBS/ddH2O mix well and clarify
 mix well and clarify
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