Sildenafil Citrate (UK-92480 citrate; Revatio)

Alias: UK-92480 citrate; UK 92480 citrate; Sildenafil Citrate; UK92480 citrate; UK 92480-10; UK-92,480-10. Trade names: Revatio.
Cat No.:V0778 Purity: ≥98%
Sildenafil Citrate (formerly also known as UK-92480 citrate; Trade names Revatio; among others), the citrate form of Sildenafil, is a potentandselective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5) withIC50of 5.22 nM.
Sildenafil Citrate (UK-92480 citrate; Revatio) Chemical Structure CAS No.: 171599-83-0
Product category: PDE
This product is for research use only, not for human use. We do not sell to patients.
Size Price Stock Qty
100mg
250mg
500mg
1g
2g
5g
10g
Other Sizes

Other Forms of Sildenafil Citrate (UK-92480 citrate; Revatio):

  • Sildenafil
  • Sildenafil citrate-d8 (UK-92480 citrate-d8)
Official Supplier of:
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Purity & Quality Control Documentation

Purity: ≥98%

Product Description

Sildenafil Citrate (formerly also known as UK-92480 citrate; Trade names Revatio;among others), the citrate form of Sildenafil, is a potent and selective inhibitor of cyclic guanosine monophosphate (cGMP)-specific phosphodiesterase type 5 (PDE5) with IC50 of 5.22 nM. Sildenafil Citrate is a well-tolerated and highly effective treatment for erectile dysfunction and pulmonary arterial hypertension.

Biological Activity I Assay Protocols (From Reference)
ln Vitro
When compared to serotonin stimulation alone, pretreatment with 1 μM sildenafil citrate enhances phosphorylation of ERK1/ERK2, increases the proportion of cells in S phase, and promotes cell proliferation (P<0.05). An abrupt rise in the optical density (OD value) to 0.33 occurs after pretreatment with 1 μM sildenafil citrate and serotonin stimulation. This is significantly different from serotonin stimulation alone (P<0.05). It is evident that 1 μM sildenafil increases the upregulation of serotonin-induced ERK1/ERK2 phosphorylation[2].
ln Vivo
Sildenafil citrate dramatically raises ICP and ICP/BP in the canine erection model, but has no discernible effect on blood pressure when compared to the vehicle[1]. Treatment with sildenafil dramatically reduces TL+-cell counts at 10 mg/kg, but not at 0.5 mg/kg. At this stage, animals treated with PBS have cells positive for the M1-like marker COX-2+ in the ischemic core, while animals treated with 10 mg/kg of sildenafil (but not 0.5 mg/kg) have most of these cells in the penumbra. In contrast, sildenafil therapy (0.5 or 10 mg/kg dosage) significantly reduces the amount of microglia/macrophages stained by Iba-1 eight days after pMCAo[3]. By boosting the release of growth factors (FGF and VEGF), sildenafil citrate has been proven to reduce flap necrosis in preclinical animal models. It has also been demonstrated histologically to be efficacious in rat cavernous nerve architecture[4].
Animal Protocol
20 mg/kg
Sprague-Dawley rats
References
[1]. Wang Z, et al. The Selectivity and Potency of the New PDE5 Inhibitor TPN729MA. J Sex Med. 2013 Nov;10(11):2790-7.
[2]. Li BB, et al. Sildenafil potentiates the proliferative effect of porcine pulmonary artery smooth muscle cells induced by serotonin in vitro. Chin Med J (Engl). 2011 Sep;124(17):2733-40.
[3]. Moretti R, et al. Sildenafil, a cyclic GMP phosphodiesterase inhibitor, induces microglial modulation after focal ischemia in the neonatal mouse brain. J Neuroinflammation. 2016 Apr 28;13(1):95.
[4]. Korkmaz MF, et al. The Effect of Sildenafil on Recuperation from Sciatic Nerve Injury in Rats. Balkan Med J. 2016 Mar;33(2):204-11
These protocols are for reference only. InvivoChem does not independently validate these methods.
Physicochemical Properties
Molecular Formula
C22H30N6O4S.C6H8O7
Molecular Weight
666.7
CAS #
171599-83-0
Related CAS #
Sildenafil;139755-83-2;Sildenafil citrate-d8;1215071-03-6
SMILES
CCCC1=NN(C2=C1NC(=NC2=O)C3=C(C=CC(=C3)S(=O)(=O)N4CCN(CC4)C)OCC)C.C(C(=O)O)C(CC(=O)O)(C(=O)O)O
InChi Key
DEIYFTQMQPDXOT-UHFFFAOYSA-N
InChi Code
InChI=1S/C22H30N6O4S.C6H8O7/c1-5-7-17-19-20(27(4)25-17)22(29)24-21(23-19)16-14-15(8-9-18(16)32-6-2)33(30,31)28-12-10-26(3)11-13-28;7-3(8)1-6(13,5(11)12)2-4(9)10/h8-9,14H,5-7,10-13H2,1-4H3,(H,23,24,29);13H,1-2H2,(H,7,8)(H,9,10)(H,11,12)
Chemical Name
5-(2-ethoxy-5-((4-methylpiperazin-1-yl)sulfonyl)phenyl)-1-methyl-3-propyl-1,4-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one 2-hydroxypropane-1,2,3-tricarboxylate
Synonyms
UK-92480 citrate; UK 92480 citrate; Sildenafil Citrate; UK92480 citrate; UK 92480-10; UK-92,480-10. Trade names: Revatio.
Storage

Powder      -20°C    3 years

                     4°C     2 years

In solvent   -80°C    6 months

                  -20°C    1 month

Note: Please store this product in a sealed and protected environment, avoid exposure to moisture.
Shipping Condition
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
Solubility Data
Solubility (In Vitro)
DMSO: 20 mg/mL (30.0 mM)
Water:<1 mg/mL
Ethanol:<1 mg/mL
Solubility (In Vivo)
Solubility in Formulation 1: ≥ 5 mg/mL (7.50 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 50.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 5 mg/mL (7.50 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 50.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

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Solubility in Formulation 3: ≥ 5 mg/mL (7.50 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 50.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.


Solubility in Formulation 4: 30% PEG400+0.5% Tween80+5% propylene glycol:30 mg/mL

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 1.4999 mL 7.4996 mL 14.9993 mL
5 mM 0.3000 mL 1.4999 mL 2.9999 mL
10 mM 0.1500 mL 0.7500 mL 1.4999 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.

Calculator

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What volume of a given 10 mM stock solution is required to make 25 ml of a 25 μM solution?
Using the equation C1V1 = C2V2, where C1=10 mM, C2=25 μM, V2=25 ml and V1 is the unknown:
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Note: Chemical formula is case sensitive: C12H18N3O4  c12h18n3o4
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Definitions of molecular mass, molecular weight, molar mass and molar weight:
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In vivo Formulation Calculator (Clear solution)
Step 1: Enter information below (Recommended: An additional animal to make allowance for loss during the experiment)
Step 2: Enter in vivo formulation (This is only a calculator, not the exact formulation for a specific product. Please contact us first if there is no in vivo formulation in the solubility section.)
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Calculation results

Working concentration mg/mL;

Method for preparing DMSO stock solution mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.

Method for preparing in vivo formulation:Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O,mix and clarify.

(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
             (2) Be sure to add the solvent(s) in order.

Clinical Trial Information
NCT Number Recruitment interventions Conditions Sponsor/Collaborators Start Date Phases
NCT05558176 Recruiting Drug: Sildenafil citrate Foetal Hypoxia Ladoke Akintola University
of Technology
Teaching Hospital, Ogbomoso
April 8, 2022 Phase 4
NCT02845388 Completed Drug: Sildenafil citrate
Drug: estradiol valerate
Infertility Omar Ahmed El Sayed Saad September 2015 Phase 2
NCT05951413 Recruiting Drug: Sildenafil Citrate
Drug: estradiol
IVF Beni-Suef University June 30, 2023 Phase 2
Phase 3
NCT03417492 Terminated Drug: Sildenafil Citrate Traumatic Brain Injury
Mild Traumatic Brain Injury
University of Pennsylvania March 1, 2018 Phase 1
Biological Data
  • Sildenafil Citrate

    Sildenafil enhances the lethality of [pemetrexed + sorafenib].Oncotarget. 2017 Feb 21; 8(8): 13464–13475.
  • Sildenafil Citrate


    [Pemetrexed + sorafenib + sildenafil] treatment inactivates cyto-protective STAT3, STAT5 and AKT whilst reducing the expression of cyto-protective proteins MCL-1, BCL-XL and Thioredoxin.Oncotarget. 2017 Feb 21; 8(8): 13464–13475.
  • Sildenafil Citrate

    Sildenafil-induced PKG signaling plays a greater role in enhancing [pemetrexed + sorafenib] toxicity than nitric oxide synthase signaling.Oncotarget. 2017 Feb 21; 8(8): 13464–13475.
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