Azathioprine

Azathioprine is a purine antimetabolite prodrug, enzymatically converted to 6-mercaptopurine, used as an immunosuppressant to prevent organ-transplant rejection and to manage autoimmune conditions such as rheumatoid arthritis and inflammatory bowel disease. Simson Pharma's Azathioprine reference standard and impurities support compendial testing for this widely used immunosuppressant.

Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) supply high-quality Azathioprine Reference Standards, pharmacopoeial reference materials, and its related impurities to pharmaceutical manufacturers, CROs, analytical laboratories, universities, and regulatory organizations worldwide. To service the Europe and America market efficiently, Simson Pharma Limited has set up Simson Pharma Global Ltd. in United Kingdom and Simson Pharma Global LLC in USA respectively.

Pharmaceutical Reference Standards / Impurity Standards

Azathioprine
Azathioprine
  • CAT. No.A490000
  • CAS. No.446-86-6
  • Mol. F.C9H7N7O2S
  • Mol. W.277.26 g/mol
  • Stock Status:Instock
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Azathioprine EP Impurity- C
Azathioprine EP Impurity- C
  • CAT. No.A490001
  • CAS. No.4897-25-0
  • Mol. F.C4H4ClN3O2
  • Mol. W.161.55 g/mol
  • Stock Status:Instock
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Azathioprine EP Impurity A
Azathioprine EP Impurity A
  • CAT. No.A490002
  • CAS. No.4531-54-8
  • Mol. F.C4H6N4O2
  • Mol. W.142.12 g/mol
  • Stock Status:Instock
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Azathioprine impurity G
Azathioprine impurity G
  • CAT. No.A490003
  • CAS. No.5581-52-2
  • Mol. F.C9H8N8O2S
  • Mol. W.292.28 g/mol
  • Stock Status:Instock
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6-Mercaptopurine Disulfide
6-Mercaptopurine Disulfide
  • CAT. No.A490004
  • CAS. No.49808-20-0
  • Mol. F.C10H6N8S2
  • Mol. W.302.34 g/mol
  • Stock Status:Instock
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N-acetyl Hypoxanthine
N-acetyl Hypoxanthine
  • CAT. No.A490006
  • CAS. No.408531-05-5
  • Mol. F.C7H6N4O2
  • Mol. W.178.14 g/mol
  • Stock Status:Instock
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Azathioprine EP Impurity E Na Salt
Azathioprine EP Impurity E Na Salt
  • CAT. No.A490007
  • CAS. No.35681-68-6
  • Mol. F.C4H4N3O3Na
  • Mol. W.165.08 g/mol
  • Stock Status:Instock
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Azathioprine EP impurity E
Azathioprine EP impurity E
  • CAT. No.A490007A
  • CAS. No.NA
  • Mol. F.C4H5N3O3
  • Mol. W.143.10 g/mol
  • Stock Status:Under Synthesis
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Azathioprine EP imp D
Azathioprine EP imp D
  • CAT. No.A490008
  • CAS. No.6339-54-4
  • Mol. F.C4H5N3O2S
  • Mol. W.159.17 g/mol
  • Stock Status:Instock
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6-(9H-purin-2-ylthio)-9H-purine
6-(9H-purin-2-ylthio)-9H-purine
  • CAT. No.A490010
  • CAS. No.NA
  • Mol. F.C10H6N8S
  • Mol. W.270.27 g/mol
  • Stock Status:Custom Synthesis
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7-nitroso-7H-Purine-6-thiol
7-nitroso-7H-Purine-6-thiol
  • CAT. No.A490011
  • CAS. No.NA
  • Mol. F.C5H3N5OS
  • Mol. W.181.18 g/mol
  • Stock Status:Custom Synthesis
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Azathioprine Test Mixture
Azathioprine Test Mixture
  • CAT. No.A490012
  • CAS. No.NA
  • Mol. F.NA
  • Mol. W.NA
  • Stock Status:Limited Stock
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9H-purine-6-thiol
9H-purine-6-thiol
  • CAT. No.A490013
  • CAS. No.157930-14-8
  • Mol. F.C5H4N4S
  • Mol. W.152.18 g/mol
  • Stock Status:Custom Synthesis
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Azathioprine Nitroso Impurity 2
Azathioprine Nitroso Impurity 2
  • CAT. No.A490015
  • CAS. No.NA
  • Mol. F.C9H6N8O3S
  • Mol. W.306.26 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso Azathioprine
N-Nitroso Azathioprine
  • CAT. No.A490016
  • CAS. No.NA
  • Mol. F.C9H6N8O3S
  • Mol. W.306.26 g/mol
  • Stock Status:Custom Synthesis
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Azathioprine Impurity 1
Azathioprine Impurity 1
  • CAT. No.A490017
  • CAS. No.NA
  • Mol. F.C9H7N7O3S
  • Mol. W.293.26 g/mol
  • Stock Status:Custom Synthesis
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Azathioprine EP Impurity F
Azathioprine EP Impurity F
  • CAT. No.A490018
  • CAS. No.68-94-0
  • Mol. F.C5H4N4O
  • Mol. W.136.11 g/mol
  • Stock Status:Custom Synthesis
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Metabolites

6-Thiouric Acid Sodium Dihydrate
6-Thiouric Acid Sodium Dihydrate
  • CAT. No.A490014
  • CAS. No.NA
  • Mol. F.C5H7N4NaO4S
  • Mol. W.242.19 g/mol
  • Stock Status:Custom Synthesis
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Isotope Labelled Compounds

Azathioprine-D3
Azathioprine-D3
  • CAT. No.A490005
  • CAS. No.NA
  • Mol. F.C9H4D3N7O2S
  • Mol. W.280.28 g/mol
  • Stock Status:Instock
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