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Technical Data
| Formula | C25H36N6O4S |
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| Molecular Weight | 516.66 | CAS No. | 268203-93-6 | |
| Solubility (25°C)* | In vitro | DMSO | 100 mg/mL (193.55 mM) | |
| Ethanol | 25 mg/mL (48.38 mM) | |||
| Water | Insoluble | |||
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* <1 mg/ml means slightly soluble or insoluble. * Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations. * Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.) |
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Biological Activity
| Description | Udenafil is a potent antagonist of human PDE5 with an IC50 of 8.25 nM and a comparable selectivity profile as sildenafil for the other PDEs. | ||||||||
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| Targets |
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| In vitro | The inhibitory effect of udenafil on PDE5 is about 150-fold greater than that on PDE1 (selectivity ratio of 149). PDE11 selectivity of udenafil (selectivity ratio of 96) is relatively high, indicating a very low probability of inhibition of PDE11 at therapeutic doses of udenafil. The IC50 values for PDE2, PDE3, and PDE6 of udenafil are 101±15.1 nM, 52.0±3.53 nM, and 53.3±2.47 nM respectively[1]. |
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| In vivo | Udenafil is rapidly absorbed, reaching peak plasma concentrations at 0.8-1.3 h, then declining monoexponentially with a terminal half-life (T1/2) between 7.3 and 12.1 hours, giving it the unique pharmacokinetics of both relatively rapid onset and long duration. Udenafil has also been shown in preclinical studies to have potent erectogenic properties in rats and rabbits with a broad safety margin[2]. Absolute oral bioavailability of udenafil is only 38% in rats. This low oral bioavailability of udenafil appears to be mainly due to a considerable intestinal first-pass effect[1]. |
Protocol (from reference)
References
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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.
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