Viagra

Esters []
Sildenafil acetate

Molecular structure via molpic based on CDK

Physical properties []
Molecular mass	474.6 g/mol [1]
Appearance	Crystals [1]
Melting point	189-190 °C [1]
Solubility	White to off-white crystalline powder; solubility in water: 3.5 mg/mL /Sildenafil citrate/ [1]
Predicted LogP	1.5 [1]

Structural Identifiers []
Molecular formula	C22H30N6O4S [1]
IUPAC name	5-[2-ethoxy-5-(4-methylpiperazin-1-yl)sulfonylphenyl]-1-methyl-3-propyl-6H-pyrazolo[4,3-d]pyrimidin-7-one [1]
SMILES	CCCC1=NN(C2=C1N=C(NC2=O)C3=C(C=CC(=C3)S(=O)(=O)N4CCN(CC4)C)OCC)C [1]
InChI	InChI=1S/C22H30N6O4S/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/h8-9,14H,5-7,10-13H2,1-4H3,(H,23,24,29) [1]
InChIKey	BNRNXUUZRGQAQC-UHFFFAOYSA-N [1]

Pharmacokinetics[]
Elimination half-life	3–4 hours

Dosing[]

Oral []
Threshold	0.5 - 1
Light	1 - 42.5
Common	42.5 - 50
Strong	50 - 100
Heavy	100

Statistically derived dosages via DBI-IGS We do not take any responsibility for medical complications or loss of life sustained by following these dosages blindly.

Sildenafil

Sildenafil (also known as Aphrodil, Vizarsin, Patrex, Sildenafil teva, Sildenafil actavis, Sildenafilo, 1-((3-(4,7-Dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo(4,3-d)pyrimidin-5-yl)-4-ethoxyphenyl)sulfonyl)-4-methylpiperazine, HIP0908, HIP-0908 or 5-{2-ethoxy-5-[(4-methylpiperazin-1-yl)sulfonyl]phenyl}-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one) is a substance of the ethylamine class.

Chemistry