Sildenafil EP Impurity B ;Sildenafil N-Oxide ; 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 | 1094598-75-0 

Sildenafil EP Impurity B

Description

Code: JCSDF-14
CAS: 1094598-75-0
Chemical Formula: C22H30N6O5S
Molecular Weight: 490.58
Category: Reference Standards/API Drug Metabolites/EP Impurities/USP Impurities
Literature:
Application: Sildenafil EP Impurity B ;Sildenafil N-Oxide ; 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 | 1094598-75-0 is useful as reference Impurity standard.