Compound Name: Sildenafil EP Impurity F

Synonyms: 5-[2-Ethoxy-5-(1-piperazinylsulfonyl)phenyl]-1,6-dihydro-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one; Desmethylsildenafil;

CAS Number: 139755-82-1

Molecular Formula: C21H28N6O4S

Molecular Weight: 460.55

Cat. Number: SIL1006