SDFA3: Sildenafil RC 13

Ethyl 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonate ;

CAS # 1971915-89-5 ;

C19H24N4O5S ;
Mol. Wt.: 420.48 ;