CAS No 139755-83-2

IUPAC 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

Catalogue No. PACE-S03001

Molecular Formula C₂₂H₃₀N₆O₄S

Molecular Weight 474.6 g/mol

Synonyms -

CAS No 1391053-95-4

IUPAC 5-[2-Ethoxy-5-[(4-methylpiperazin-1-yl)sulfonyl]phenyl]-1-methyl-3-(2-methylpropyl)-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one

Catalogue No. PACE-S03002

Molecular Formula C₂₃H₃₂N₆O₄S

Molecular Weight 488.6 g/mol

Synonyms Sildenafil USP Related Compound A , Sildenafil Isobutyl Analog

CAS No 1094598-75-0

IUPAC 5-[2-Ethoxy-5-[(4-methyl-4-oxido-1-piperazinyl)sulfonyl]phenyl]-1,6-dihydro-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one

Catalogue No. PACE-S03003

Molecular Formula C₂₂H₃₀N₆O₅S

Molecular Weight 490.6 g/mol

Synonyms Sildenafil N-Oxide

CAS No 1357931-55-5

IUPAC 4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonic acid

Catalogue No. PACE-S03005

Molecular Formula C₁₇H₂₀N₄O₅S

Molecular Weight 392.4 g/mol

Synonyms Desmethylpiperazinyl Sildenafil Sulfonic Acid