171599-83-0 sildenafil citrate sildenafil citrate

Synonyms： Viagra; 5-[2-Ethoxy-5-(4-methylpiperazin-1-yl-sulphonyl)phenyl]-1-methyl-3-n-propyl-1,6-dihydro-7H-pyrazol[4,3d]pyrimidin-7-one citrate; 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 (1:1); 5-{2-ethoxy-5-[(4-methylpiperazin-1-yl)sulfonyl]phenyl}-3-propyl-2,4-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one; Sidenafil citrate
CAS Number：171599-83-0
Molecular Formula：C₂₁H₂₈N₆O₄S
Molecular Weight：460.5498
InChI：InChI=1/C21H28N6O4S/c1-4-6-16-18-19(25-24-16)21(28)23-20(22-18)15-13-14(7-8-17(15)31-5-2)32(29,30)27-11-9-26(3)10-12-27/h7-8,13H,4-6,9-12H2,1-3H3,(H,24,25)(H,22,23,28)
Molecular Structure：
Density：1.447g/cm³
Boiling point：698.72°C at 760 mmHg
Refractive index：1.683
Flash point：376.372°C
Vapour Pressur：0mmHg at 25°C
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