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VU0134992 hydrochloride is the first subtype-preferring, orally active and selective blocker of the Kir4.1 potassium channel pore (IC50: 0.97 μM).

| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 5 mg | $31 | In Stock | In Stock | |
| 10 mg | $54 | In Stock | In Stock | |
| 25 mg | $106 | In Stock | In Stock | |
| 50 mg | $179 | In Stock | In Stock | |
| 100 mg | $297 | In Stock | In Stock | |
| 200 mg | $459 | - | In Stock | |
| 1 mL x 10 mM (in DMSO) | $35 | In Stock | In Stock |
| Description | VU0134992 hydrochloride is the first subtype-preferring, orally active and selective blocker of the Kir4.1 potassium channel pore (IC50: 0.97 μM). |
| In vitro | In whole-cell patch-clamp electrophysiology experiments, VU0134992 inhibits Kir4.1 with an IC50 value of 0.97 M and is 9-fold selective for homomeric Kir4.1 over Kir4.1/5.1 concatemeric channels (IC50 = 9 M) at -120 mV. In thallium (Tl+) flux assays, VU0134992 is greater than 30-fold selective for Kir4.1 over Kir1.1, Kir2.1, and Kir2.2; is weakly active toward Kir2.3, Kir6.2/SUR1, and Kir7.1; and is equally active toward Kir3.1/3.2, Kir3.1/3.4, and Kir4.2. This potency and selectivity profile is superior to Kir4.1 inhibitors amitriptyline, nortriptyline, and fluoxetine. Medicinal chemistry identified components of VU0134992 that are critical for inhibiting Kir4.1. Patch-clamp electrophysiology, molecular modeling, and site-directed mutagenesis identified pore-lining glutamate 158 and isoleucine 159 as critical residues for block of the channel. |
| In vivo | VU0134992 displayed a large free unbound fraction (fu) in rat plasma (fu = 0.213).Consistent with the known role of Kir4.1 in renal function, oral dosing of VU0134992 led to a dose-dependent diuresis, natriuresis, and kaliuresis in rats.Thus, VU0134992 represents the first in vivo active tool compound for probing the therapeutic potential of Kir4.1 as a novel diuretic target for the treatment of hypertension. |
| Animal Research | VU0134992 hydrochloride (250-300 g Male Sprague-Dawley rats;50 and 100 mg/kg) Oral gavage |
| Molecular Weight | 447.84 |
| Formula | C20H32BrClN2O2 |
| Cas No. | 1052515-91-9 |
| Smiles | Cl.CC(C)c1ccc(OCC(=O)NC2CC(C)(C)NC(C)(C)C2)c(Br)c1 |
| Relative Density. | no data available |
| Storage | Powder: -20°C for 3 years | In solvent: -80°C for 1 year | Shipping with blue ice/Shipping at ambient temperature. | |||||||||||||||||||||||||||||||||||
| Solubility Information | DMSO: 230 mg/mL (513.58 mM), Sonication is recommended. | |||||||||||||||||||||||||||||||||||
| In Vivo Formulation | 10% DMSO+40% PEG300+5% Tween 80+45% Saline: 5 mg/mL (11.16 mM), Sonication is recommended. Please add the solvents sequentially, clarifying the solution as much as possible before adding the next one. Dissolve by heating and/or sonication if necessary. Working solution is recommended to be prepared and used immediately. The formulation provided above is for reference purposes only. In vivo formulations may vary and should be modified based on specific experimental conditions. | |||||||||||||||||||||||||||||||||||
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DMSO
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