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XML generation date: 2024-09-20 06:23:32.239
Product last modified at: 2024-05-30T07:09:01.692Z
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PDP - Template Name: Chemical Modulators
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  1. Products /
  2. Activators & Inhibitors /
  3. Sildenafil Citrate

Sildenafil Citrate #72389

    Product Information

    Product Usage Information

    Sildenafil Citrate is supplied as a lyophilized powder. For a 10 mM stock, reconstitute 5 mg of powder in 0.75 mL of DMSO. Working concentrations and length of treatment can vary depending on the desired effect.

    Storage

    Store lyophilized at room temperature, desiccated. In lyophilized form, the chemical is stable for 24 months. Once in solution, store at -20ºC and use within 3 months to prevent loss of potency. Aliquot to avoid multiple freeze/thaw cycles.

    Product Description

    Molecular Weight 666.7 g/mol
    Purity >98%
    Molecular Formula C22H30N6O4S • C6H8O7
    CAS 171599-83-0
    Solubility Soluble in DMSO at 60 mg/mL.

    Background

    Sildenafil Citrate is an inhibitor of phosphodiesterase 5 (PDE5), which catalyzes the hydrolysis of cyclic guanosine monophosphate (cGMP) in regulating cellular responses to a number of extracellular signals. Sildenafil Citrate binds the catalytic site of PDE5 (Ki = 1 nM) more strongly than cGMP (Ki = 200 nM) (1). Because the PDE5 isozyme is prominently expressed in the corpus cavernosum and the cardiovascular system, PDE5 inhibitors, such as Sildenafil Citrate, have been used therapeutically to treat erectile dysfunction and pulmonary arterial hypertension (2,3). Sildenafil Citrate treatment of a porcine model of cardiac arrest and resuscitation produced a cardioprotective effect, improving cardiac function and survival while reducing apoptosis (4). Through controlling PDE5-mediated cGMP concentrations, Sildenafil Citrate can attenuate the biological effects of nitric oxide (NO) signaling, and play a role in regulating cerebral blood flow and protection against brain injury pathogenesis. Preclinical and clinical trials have studied the potential role of Sildenafil Citrate to improve recovery after brain injury in both adults and neonates (5).

    Limited Uses

    Except as otherwise expressly agreed in a writing signed by a legally authorized representative of CST, the following terms apply to Products provided by CST, its affiliates or its distributors. Any Customer's terms and conditions that are in addition to, or different from, those contained herein, unless separately accepted in writing by a legally authorized representative of CST, are rejected and are of no force or effect.

    Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

    For Research Use Only. Not For Use In Diagnostic Procedures.
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