Impurity Reference Standard - Products

Azathioprine

CAT No: CL-AZT-01 CAS No: 446-86-6 Mol Wt: 277.3 Mol F: C9H7N7O2S Inv Status: In Stock

Chemical Name: 6-[(1-Methyl-4-nitro-1H-imidazol-5-yl)thio]-1H-purine

Azathioprine EP Impurity A

CAT No: CL-AZT-02 CAS No: 4531-54-8 Mol Wt: 142.1 Mol F: C4H6N4O2 Inv Status: In Stock

Chemical Name: 1-Methyl-4-nitro-1H -imidazol-5-amine ; 5-Amino-1-methyl-4-nitro-imidazole

Azathioprine EP Impurity B

CAT No: CL-AZT-03 CAS No: 6112-76-1 Mol Wt: 152.2 : 18.0 Mol F: C5H4N4S : H2O Inv Status: In Stock

Chemical Name: 7H-purine-6-thiol hydrate

Azathioprine EP Impurity C

CAT No: CL-AZT-04 CAS No: 4897-25-0 Mol Wt: 161.6 Mol F: C4H4ClN3O2 Inv Status: In Stock

Chemical Name: 5-chloro-1-methyl-4-nitro-1H-imidazole

Azathioprine EP Impurity D

CAT No: CL-AZT-05 CAS No: 6339-54-4 Mol Wt: 159.1 Mol F: C4H5N3O2S Inv Status: In Stock

Chemical Name: 1-Methyl-4-nitro-1H-imidazole-5-thiol; 1-Methyl-4-nitro-imidazole-5-thiol ; 5-Mercapto-1-methyl-4-nitroimidazole

Azathioprine EP Impurity E

CAT No: CL-AZT-06 CAS No: 35681-68-6 Mol Wt: 143.1 : 23.0 Mol F: C4H5N3O3 : Na Inv Status: Custom Synthesis

Chemical Name: 1-Methyl-4-nitro-1H-imidazol-5-ol Sodium Salt ; 5-Hydroxy-1-methyl-4-nitroimidazole Sodium Salt

Azathioprine EP Impurity G

CAT No: CL-AZT-07 CAS No: 5581-52-2 Mol Wt: 292.3 Mol F: C9H8N8O2S Inv Status: Custom Synthesis

Chemical Name: 2-Amino-6-[(1-methyl-4-nitroimidazol-5-yl)thio]purine ; Aminoazathioprin

Azathioprine Impurity 2

CAT No: CL-AZT-09 CAS No: NA Mol Wt: 293.3 Mol F: C9H7N7O3S Inv Status: Custom Synthesis

Chemical Name: 6-((1-methyl-4-nitro-1H-imidazol-5-yl)sulfinyl)-7H-purine

Azathioprine BP Impurity E

CAT No: CL-AZT-10 CAS No: 73703-74-9 Mol Wt: 143.1 Mol F: C4H5N3O3 Inv Status: In Stock

Chemical Name: 1-Methyl-4-nitro-1H-imidazol-5-ol

Azathioprine Impurity 1

CAT No: CL-AZT-11 CAS No: 49808-20-0 Mol Wt: 216.3 Mol F: C5H4N4S3 Inv Status: In Stock

Chemical Name: 6-Mercaptopurine Disulfide

Azathioprine Bis Nitrazole Impurity

CAT No: CL-AZT-12 CAS No: 13755-68-5 Mol Wt: 284.25 Mol F: C8H8N6O4S Inv Status: In Stock

Chemical Name: 5,5'-Thiobis[1-methyl-4-nitro-1H-Imidazole]

Azathioprine Dimer Impurity

CAT No: CL-AZT-13 CAS No: 90947-51-6 Mol Wt: 270.27 Mol F: C10H6N8S Inv Status: In Stock

Chemical Name: Di(7H-purin-6-yl)sulfane

Azathioprine EP Impurity F

CAT No: CL-AZT-14 CAS No: 68-94-0 Mol Wt: 136.1 Mol F: C5H4N4O Inv Status: Custom Synthesis

Chemical Name: 1,7-dihydro-6H-purin-6-one

Azathioprine Sulfone impurity

CAT No: CL-AZT-15 CAS No: NA Mol Wt: 309.3 Mol F: C9H7N7O4S Inv Status: Custom Synthesis

Chemical Name: 6-((1-Methyl-4-nitro-1H-imidazol-5-yl)sulfonyl)-7H-purine

6-Thioinosine Phosphate

CAT No: CL-AZT-16 CAS No: 53-83-8 Mol Wt: 364.3 Mol F: C10H13N4O7PS Inv Status: Custom Synthesis

Chemical Name: ((2R,3S,4R,5R)-3,4-Dihydroxy-5-(6-mercapto-9H-purin-9-yl)tetrahydrofuran-2-yl)methyl dihydrogen phosphate

Azathioprine D3

CAT No: CL-AZT-17 CAS No: NA Mol Wt: 280.3 Mol F: C9H4D3N7O2S Inv Status: Custom Synthesis

Chemical Name: 6-((1-(methyl-d3)-4-nitro-1H-imidazol-5-yl)thio)-1H-purine

Azathioprine-13C2-15N

CAT No: CL-AZT-18 CAS No: NA Mol Wt: 280.2 Mol F: C713C2H7N615NO2S Inv Status: Custom Synthesis

Chemical Name: 6-((1-Methyl-4-nitro-1H-imidazol-5-yl)thio)-9H-purine-4,8-13C2-7-15N

Azathioprine-13C4

CAT No: CL-AZT-19 CAS No: 1346600-71-2 Mol Wt: 281.2 Mol F: C513C4H7N7O2S Inv Status: Custom Synthesis

Chemical Name: 6-((1-(Methyl-13C)-4-nitro-1H-imidazol-5-yl-2,4,5-13C3)thio)-7H-purine

Type:Impurity Reference Standard

API NAME:Azathioprine

Total Products: 18

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