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Sildenafil Citrate

Sildenafil Citrate Impurities & Reference Standards

In pharmaceutical manufacturing, Sildenafil Citrate functions as an active pharmaceutical ingredient (API) used in the formulation of a wide range of medicinal products. It has a molecular formula of C22H30N6O4S and a molecular weight of 474.58 g/mol. Related substances and impurities of Sildenafil Citrate are routinely used as reference materials for stability-indicating method development, impurity profiling, and compliance with ICH, USP, BP, and EP monographs. Each batch of Sildenafil Citrate reference standard is accompanied by a Certificate of Analysis (CoA), HPLC purity data, and spectroscopic (NMR/MS/IR) characterization for use in pharmaceutical laboratories worldwide.


Associated Impurities

Sidenafil Acid Impurity

  • CAS No: 139756-00-6
  • Mol. F.: C22H30N6O4S

Sildenafil Amide Impurity

  • CAS No: 139756-01-7
  • Mol. F.: C22H30N6O4S

Sildenafil Amine Impurity

  • CAS No: 139756-02-8
  • Mol. F.: C22H30N6O4S

Sildenafil Citrate Impurity – B

  • CAS No: 1094598-75-0
  • Mol. F.: C22H30N6O4S

Sildenafil Citrate Impurity – D

  • CAS No: 1357931-55-5
  • Mol. F.: C22H30N6O4S

Sildenafil Citrate Impurity – E

  • CAS No: 288-32-4
  • Mol. F.: C22H30N6O4S

Sildenafil Citrate Impurity – G

  • CAS No: 139755-91-2
  • Mol. F.: C22H30N6O4S

Sildenafil Coupled Impurity

  • CAS No: 139756-03-9
  • Mol. F.: C22H30N6O4S

Sildenafil Piperazine Impurity

  • CAS No: 139755-82-1
  • Mol. F.: C4H10N2
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