Name: Sildenafil
Brand: Selleck Chemicals
SKU: S4684
Availability: InStock
Rating: 5 (22 reviews)

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Quality Control

Batch: Purity: 99.97%

99.97

Related Targets	Dehydrogenase HSP Transferase P450 (e.g. CYP17) phosphatase PPAR Vitamin Carbohydrate Metabolism Mitochondrial Metabolism Drug Metabolite
Other PDE Inhibitors	Rolipram IBMX (3-Isobutyl-1-methylxanthine) Icariin Cilomilast Mardepodect (PF-2545920) Deltarasin PF-8380 Enpp-1-IN-1 Ibudilast GSK256066

Cell Culture, Treatment & Working Concentration

Cell Lines	Assay Type	Incubation Time	Activity Description	PMID
human erythrocytes	Function assay	60 mins	Inhibition of ABCC5 in human erythrocytes assessed as inhibition of ATP-mediated [3H]cGMP uptake in inside-out vesicles after 60 mins by liquid scintillation counting, Ki=1.2 μM	22380603
HEK293	Function assay		TP_TRANSPORTER: inhibition of 9-(2-phosphonomethoxyethyl)adenine(PMEA) efflux (PMEA: 1 uM) in MRP4-expressing HEK293 cells, IC50=20μM	12695538
mammalian cells	Function assay		Inhibition of human Potassium channel HERG expressed in mammalian cells, IC50=3.31131μM	12873512
RFL-6	Function assay		Inhibition of phosphodiesterase 5 in rat fetal lung fibroblast (RFL-6) cells, Ki=0.0018μM	15771456
CHO	Function assay		Inhibition of human ERG expressed in CHO cells by whole cell patch clamp technique, IC50=3.31131μM	18448342
COS7	Function assay		Inhibition of human recombinant PDE5A1 expressed in COS7 cells, IC50=0.075μM	18778098
HEK293T	Function assay	2 hrs	Displacement of [3H]ZM241385 from human AA2AR expressed in HEK293T cells after 2 hrs by liquid scintillation counter, Ki=0.19953μM	22563707
HEK293T	Function assay	45 mins	Inhibition of mouse Ido2 transfected in HEK293T cells using L-tryptophan as substrate assessed as kynurenine formation after 45 mins by spectrophotometric analysis, IC50=4.5μM	23122865
Sf9	Function assay		Inhibition of human PDE5A1 expressed in baculovirus in sf9 cells by PDE Glo phosphodiesterase assay, IC50=0.0056μM	25801159
BL21-CodonPlus(DE3)	Function assay	30 mins	Inhibition of human His-tagged PDE5A catalytic domain expressed in Escherichia coli BL21-CodonPlus(DE3) cells using [3H]cAMP or [3H]cGMP as substrate incubated for 30 mins by scintillation counting method, IC50=0.0022μM	26908025
Sf9	Function assay	15 mins	Inhibition of recombinant human PDE5A1 catalytic domain (535 to 860 residues) expressed in baculovirus infected sf9 cells using [3H]cGMP as substrate incubated for 15 mins by liquid scintillation counting method, IC50=0.0022μM	26908025
BL21-CodonPlus	Function assay		Inhibition of recombinant human His6-tagged PDE5A (535 to 786 residues)/PDE6C expressed in Escherichia coli BL21-CodonPlus cells using [3H]cGMP as substrate, Ki=0.025μM	26908025
BL21-CodonPlus(DE3)	Function assay	30 mins	Inhibition of human His-tagged PDE4B catalytic domain expressed in Escherichia coli BL21-CodonPlus(DE3) cells using [3H]cAMP or [3H]cGMP as substrate incubated for 30 mins by scintillation counting method, IC50=20μM	26908025
Sf9	Function assay	30 mins	Inhibition of full length recombinant human N-terminal GST-tagged PDE5A1 expressed in baculovirus infected Sf9 cells using cGMP as substrate after 30 mins by HTRF assay, IC50=0.004μM	27606546
SK-N-MC	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SK-N-MC cells	29435139
NB1643	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for NB1643 cells	29435139
BT-12	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for BT-12 cells	29435139
OHS-50	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for OHS-50 cells	29435139
RD	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for RD cells	29435139
Rh41	qHTS assay		qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for Rh41 cells	29435139
Sf9	Function assay	1 hr	Inhibition of N-terminal GST-tagged full length recombinant human PDE5A1 catalytic domain expressed in Baculovirus infected Sf9 insect cells using FAM-cGMP as substrate after 1 hr by fluorescence polarization assay, IC50=0.00365μM	29505934
Sf9	Function assay	30 mins	Inhibition of N-terminal GST-tagged human PDE5A1 expressed in baculovirus infected sf9 cells using [3H]cGMP as substrate measured after 30 mins by scintillation proximity assay, IC50=0.00431μM	31021628
Sf9	Function assay	30 mins	Inhibition of N-terminal GST-tagged human PDE6C expressed in baculovirus infected sf9 cells using [3H]cGMP as substrate measured after 30 mins by scintillation proximity assay, IC50=0.03642μM	31021628
Sf9	Function assay	30 mins	Inhibition of N-terminal GST-tagged human PDE1 expressed in baculovirus infected sf9 cells using [3H]cAMP as substrate measured after 30 mins by scintillation proximity assay, IC50=0.819μM	31021628
Sf9	Function assay	30 mins	Inhibition of N-terminal GST-tagged human PDE11A4 expressed in baculovirus infected sf9 cells using [3H]cGMP as substrate measured after 30 mins by scintillation proximity assay, IC50=4.93μM	31021628
Click to View More Cell Line Experimental Data

Solubility

In vitro
Batch:

Water : 14 mg/mL

DMSO : Insoluble
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)

Ethanol : Insoluble

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
Mass value Mass unit	Concentration value Concentration unit	Volume value Volume unit	Molecular weight (g/mol)

Dilution Calculator Molecular Weight Calculator

In vivo batch selection In vivo Batch:
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	1.000mg/ml (2.11mM)	Taking the 1 mL working solution as an example, add 50 μL of 20 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.
Clear solution	5% DMSO 1 95% Corn oil Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	1.000mg/ml (2.11mM)	Taking the 1 mL working solution as an example, add 50 μL of 20 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg

Average weight of animals: g

Dosing volume per animal: μL

Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO

%

% Tween 80

% ddH₂O

% DMSO

+

%

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid 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 master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Chemical Information, Storage & Stability

Molecular Weight	474.58	Formula	C₂₂H₃₀N₆O₄S	Storage (From the date of receipt)	3 years-20°Cpowder
CAS No.	139755-83-2	Download SDF		Storage of Stock Solutions	1 year-80°Cin solvent 1 month-20°Cin solvent
Synonyms	Revatio, UK-92480, Viagra			Smiles	CCCC1=NN(C2=C1N=C(NC2=O)C3=C(C=CC(=C3)S(=O)(=O)N4CCN(CC4)C)OCC)C

Mechanism of Action

Targets/IC₅₀/Ki	PDE5 5.22 nM
In vitro	Sildenafil improves insulin signalling and NO production in endothelial cells, probably by reducing oxidative stress induced by hyperglycemia and by increasing intracellular Ca2+ levels.
In vivo	Acute administration of the PDE-5 inhibitor sildenafil in a single clinically relevant dose does not modulate the in vivo function of the hypertrophic failing right heart of the rat measured by echocardiography and invasive hemodynamics.
References	[1] https://pubmed.ncbi.nlm.nih.gov/24618544/ [2] https://pubmed.ncbi.nlm.nih.gov/21297971/

Clinical Trial Information

(data from https://clinicaltrials.gov, updated on 2024-05-22)

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
NCT05466695	Not yet recruiting	Erectile Dysfunction and Neutrophil Lymphocyte Ratio	Assiut University	August 1 2022	Early Phase 1
NCT05275725	Recruiting	Birth Asphyxia	Pia Wintermark\|Kawempe National Referral Hospital\|Saint Francis Hospital\|Walimu\|McGill University Health Centre/Research Institute of the McGill University Health Centre	July 1 2022	Phase 1
NCT04565925	Recruiting	Spinal Cord Injuries\|Urinary Incontinence	The University of Texas Medical Branch Galveston	July 7 2021	Phase 2

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Sildenafil PDE inhibitor

Chemical Structure

Molecular Weight: 474.58