Sildenafil Impurity F

Uses

1,6-Dihydro-5-[2-methoxy-5-[(4-methyl-1-piperazinyl)sulfonyl]phenyl]-1-methyl-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one is a structural analogue of Sildenafil (S435001), and is a water-compatible molecularly imprinted polymer (MIP) used as a solid-phase extraction sorbent for selective extraction of Sildenafil and its desmethyl metabolites from plasma samples.