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Orally active, potent inhibitor of phosphodiesterase 5 (PDE5) (IC50 = 4 nM). Enhances nitric oxide-dependent relaxation of human corpus cavernosum in vitro. Promotes mobilization of hematopoietic stem cells (HSCs) in combination with AMD 3100 (Cat. No. 3299). Reduces pulmonary pressure and edema.
Sold for research purposes under agreement from Pfizer Inc.
|Storage||Desiccate at RT|
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.
Tocris products are intended for laboratory research use only, unless stated otherwise.
|Solvent||Max Conc. mg/mL||Max Conc. mM|
Preparing Stock Solutions
The following data is based on the product molecular weight 666.7. Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.
|Concentration / Solvent Volume / Mass||1 mg||5 mg||10 mg|
|1 mM||1.5 mL||7.5 mL||15 mL|
|5 mM||0.3 mL||1.5 mL||3 mL|
|10 mM||0.15 mL||0.75 mL||1.5 mL|
|50 mM||0.03 mL||0.15 mL||0.3 mL|
References are publications that support the biological activity of the product.
Ballard et al (1998) Effects of silde. on the relaxation of human corpus cavernosum tissue in vitro and on the activities of cyclic nucleotide phosphodiesterase isozymes. J.Urol. 159 2164 PMID: 9598563
Turko et al (1999) Inhibition of cyclic cGMP-binding cyclic GMP-specific phosphodiesterase (type 5) by silde. and related compounds. Mol.Pharmacol. 56 124 PMID: 10385692
Ghofrani et al (2006) Sildenafil: from angina to erectile dysfunction to pulmonary hypertension and beyond. Nat.Rev.Drug Discov. 5 689 PMID: 16883306
Smith-Berdan et al (2019) Viagra enables efficient, single-day hematopoietic stem cell mobilization. Stem Cell Reports. PMID: 31607567
Solaimanzadeh et al (2020) Acetazolamide, nifedipine and phosphodiesterase inhibitors: rationale for their utilization as adjunctive countermeasures in the treatment of coronavirus disease 2019 (COVID-19). Cureus 12 e7343
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1 Citation for Sildenafil citrate
Citations are publications that use Tocris products. Selected citations for Sildenafil citrate include:
Vandendriessche et al (2013) The soluble guanylate cyclase activator BAY 58-2667 protects against morbidity and mortality in endotoxic shock by recoupling organ systems. Development 8 e72155 PMID: 24015214
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