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Sulfasalazine

Sulfasalazine Impurities & Reference Standards

Sulfasalazine is a widely used active pharmaceutical ingredient (API) that plays a central role in modern drug formulation and manufacturing. Sulfasalazine is registered under CAS Number 599-79-1. The compound carries the molecular formula C18H14N4O5S, corresponding to a molecular weight of 398.4 g/mol. Sulfasalazine impurity reference standards are used to support assay development, purity testing, and stability studies in line with global pharmacopoeial requirements (ICH, USP, BP, EP). We supply certified Sulfasalazine reference standards and impurity markers with complete documentation, including a Certificate of Analysis (CoA), HPLC chromatograms, and spectroscopic data, for pharmaceutical research, manufacturing, and regulatory use.

Associated Impurities

Sulfasalazine Impurity – A

  • CAS No: 1391062-35-3
  • Mol. F.: C28H22N8O5S2

Sulfasalazine Impurity – B

  • CAS No: 1391062-49-9
  • Mol. F.: C29H22N8O7S2

Sulfasalazine Impurity – C

  • CAS No: 66030-25-9
  • Mol. F.: C18H14N4O3

Sulfasalazine Impurity – D

  • CAS No: 66364-70-3
  • Mol. F.: C17H14N4O3S

Sulfasalazine Impurity – E

  • CAS No: 1391062-34-2
  • Mol. F.: C29H22N6O7S2

Sulfasalazine Impurity – F

  • CAS No: 66364-71-4
  • Mol. F.: C18H14N4O5S

Sulfasalazine Impurity – H

  • CAS No: 69-72-7
  • Mol. F.: C7H6O3

Sulfasalazine Impurity – I

  • CAS No: 21542-82-5
  • Mol. F.: C13H10N2O6S

Sulfasalazine Impurity – G

  • CAS No: 1391062-37-5
  • Mol. F.: C29H22N6O7S2

Sulfasalazine Impurity – J

  • CAS No: 144-83-2
  • Mol. F.: C11H11N3O2S
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