Catalogue Number: | S-0655 |
Compound Name: | Sildenafil EP Impurity B (Sildenafil N-Oxide) |
Synonyms: | 4-((4-Ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)phenyl)sulfonyl)-1-methylpiperazine 1-oxide |
CAS#: | 1094598-75-0 |
Alternate CAS#: | |
Molecular Formula: | C22H30N6O5S |
Molecular Weight: | 490.58 |
Sildenafil EP Impurity A (Sildenafil USP Related Compound A, Isobutyl Sildenafil)
CAS No. 1391053-95-4
C23H32N6O4S
M.W. 488.61
Sildenafil Analogue I (Propoxyphenyl-Thiohydroxyhomo Sildenafil)
CAS No. 479073-90-0
C24H34N6O4S2
M.W. 534.69