RA-2 is an inhibitor of small-conductance calcium-activated potassium channel 2.3 (KCa2.3/SK3) and intermediate-conductance calcium-activated potassium channel 3.1 (KCa3.1/IK1) (IC50s = 2 and 17 nM, respectively).1 It is selective for these channels over KCa1.1/BK1, voltage-gated potassium channel 1.2 (Kv1.2), Kv1.3, Kv7.4, human-ether-a-go-go (hERG), also known as Kv11.1, and the inward-rectifier potassium channel (Kir), but also inhibits KCa2.1 and KCa2.2 by 96 and 90%, respectively, at 1 µM. RA-2 (1 µM) inhibits bradykinin-induced relaxation of porcine coronary artery rings precontracted with the TP receptor agonist U-46619 . It decreases heart rate, but not mean arterial blood pressure, in mice when administered at a dose of 30 mg/kg.
RA-2
Catalog No.: GC91410Purity:>95.00%
RA-2 is an inhibitor of small-conductance calcium-activated potassium channel 2.3 (KCa2.3/SK3) and intermediate-conductance calcium-activated potassium channel 3.1 (KCa3.1/IK1) (IC50s = 2 and 17 nM, respectively).
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Cas No.: 1867107-62-7
5mgIn Stock
$80.00
1
10mgIn Stock
$151.00
1
| Pack Size | Price | Availability | Quantity | Action |
|---|---|---|---|---|
| 5mg | $80.00 | In Stock | 1 | |
| 10mg | $151.00 | In Stock | 1 |
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Citations
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Nature641, 529–536 (2025)
Nature628, 630–638 (2024)
Nature632, 686–694 (2024)
Nature618, 1017–1023 (2023)
Nature610, 366–372 (2022)
Cell187(9):2288-2304 (2024)
Cell183(7):1867-1883 (2020)
Science388(6745) (2025)
Science387(6739) (2025)
Science387(6734) (2025)
Cell Research35, 97–116 (2025)
Cell Research34, 683–706 (2024)
Cell Research33, 273–287 (2023)
Cell Research33, 546–561 (2023)
Cell Research33, 904–922 (2023)
Cell Research31, 1291–1307 (2021)
Description
Product Documents
Purity:>95.00%Appearance:A solid
Chemical Properties
CAS No.
1867107-62-7
Molecular Formula
C22H16F2O6
Molecular Weight
414.4
Solubility
DMSO: 5 mg/ml,Ethanol: 15 mg/ml
Storage
Store at -20°C
General tips
Select a suitable solvent according to the product solubility data. Once prepared, aliquot the stock solution to avoid repeated freeze-thaw cycles.
Use stock solutions within 6 months when stored at -80°C or within 1 month when stored at -20°C.
To improve solubility, warm the tube to 37°C and sonicate it for an appropriate period.
Use stock solutions within 6 months when stored at -80°C or within 1 month when stored at -20°C.
To improve solubility, warm the tube to 37°C and sonicate it for an appropriate period.
Shipping Condition
Evaluation samples are shipped with blue ice. Other available sizes are shipped at room temperature or with blue ice upon request.
CalculatorsMolarity / Dilution / Molecular Weight / Unit Conversion / In Vivo Formulation / Solubility
g/mol
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