Sildenafil Lactam Impurity

  • Product Code
  • : Ax-IMP829
  • CAS Number
  • : 139756-21-1
  • Synonyms
  • : 5-(2-ethoxyphenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
  • Molecular Formula
  • : C17H20N4O2
  • Molecular Weight
  • : 312.37



Sildenafil Impurity B ; Sildenafil N-Oxide

  • Product Code
  • : Ax-IMP830
  • CAS Number
  • : 1094598-75-0
  • Synonyms
  • : 4-((4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)phenyl)sulfonyl)-1-methylpiperazine 1-oxide
  • Molecular Formula
  • : C22H30N6O5S
  • Molecular Weight
  • : 490.58



Sildenafil Impurity C ; O-Desethyl Sildenafil

  • Product Code
  • : Ax-IMP831
  • CAS Number
  • : 139755-91-2
  • Synonyms
  • : 5-(2-hydroxy-5-((4-methylpiperazin-1-yl)sulfonyl)phenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
  • Molecular Formula
  • : C20H26N6O4S
  • Molecular Weight
  • : 446.53



Desmethylpiperazinyl Sildenafil Sulfonic Acid

  • Product Code
  • : Ax-IMP832
  • CAS Number
  • : 1357931-55-5
  • Synonyms
  • : 4-ethoxy-3-(1-methyl-7-oxo-3-propyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidin-5-yl)benzenesulfonic acid
  • Molecular Formula
  • : C17H20N4O5S
  • Molecular Weight
  • : 392.43



N-Desmethyl Sildenafil

  • Product Code
  • : Ax-IMP833
  • CAS Number
  • : 139755-82-1
  • Synonyms
  • : 5-(2-ethoxy-5-(piperazin-1-ylsulfonyl)phenyl)-1-methyl-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one
  • Molecular Formula
  • : C21H28N6O4S
  • Molecular Weight
  • : 460.55



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