TMS-074028
Sildenafil EP Impurity A (Sildenafil USP Related Compound A, Isobutyl Sildenafil)
5-(2-ethoxy-5-((4-methylpiperazin-1-yl)sulfonyl)phenyl)-3-isobutyl-1-methyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
Open
1391053-95-4
C23H32N6O4S
488.61