Sildenafil Impurity 193

• Synonyms:

  5- (2-ethoxy-5- ((4-nitrosopiperazin-1-yl) sulfonyl) phenyl) -1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one

• Molecular Formula:

  C21H27N7O5S

• Molecular Weight:

  489.55

• Target Alternative Name:

  Sildenafil

• Product Name Synonym:

  5- (2-ethoxy-5- ((4-nitrosopiperazin-1-yl) sulfonyl) phenyl) -1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one