SDFA2: Sildenafil RC 12

5-(2-Methoxy-5-(4-methylpiperazin-1-ylsulfonyl)phenyl)-1-methyl-3-propyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one ;

CAS # 263897-18-3 ;

C21H28N6O4S ;
Mol. Wt.: 460.55 ;