Structure and Properties of Sildenafil Citrate

Synonyms:: Viagra

Empirical Formula: C28H38N6O11S
SMILES: CCCc1nn(C)c2c(=O)[nH]c(nc12)c3cc(ccc3OCC)S(=O)( | |=O)N4CCN(C)CC4

IUPAC Name:

1-[[3-(6,7-dihydro-1-methyl-7-oxo-3-propyl-1H-pyrazolo [4,3-d]pyrimidin-5-yl)-4-ethoxyphenyl]sulfonyl]-4-methylpiperazine citrate

Molecular mass: 666.70

Structure:(including citrate):

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Fig 1. Sildenafil Citrate

 

Solubility: 3.5 mg/ml in water

Hydrophobicity(Sildenafil):CLOGP=3.05(Full calculation)

Polarizability:12.58( Full calculation)

Prescribed form:Viagra®(Pfizer):

Form:Blue diamond pills, 25mg, 50mg, 100mg(see Fig.3)

Production:(21 Day batch process) 1400kg concentrated sildenafil citrate produced each week at factory in Ringsakiddy, Co Cork, Republic of Ireland. product then mixed with inactive ingredients in the USA,France,or Puerto Rico.

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 Fig.2 Viagra bottle

 Fig.3 Viagra pills

Viagra pills: Active ingredient:sildenafil citrate

Other ingredients:(inactive)microcrystalline cellulose, anhydrous dibasic calcium phosphate, croscarmellose sodium, magnesium stearate, hydroxypropyl methylcellulose, titanium dioxide, lactose, triacetin, and FD & C Blue #2 aluminum lake.

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