PRODUCT CATALOG
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Allopurinol
Human APIstandards in stock
Route - KSMs and intermediates
- KSM3-Amino Pyrazole Carboxamide Hemisulfate27511-79-1
Impurity and working standards - ready stock
| Structure | Standard | CAS | Availability | |
|---|---|---|---|---|
| 3-Amino-4- pyrazolecarboxamide hemisulfate (3-APC) | 27511-79-1 | In stock | |
![Structure of 1,5-Dihydro-4H- pyrazolo[3,4-d]pyrimidin-4- one](/structures/315-30-0.svg) | 1,5-Dihydro-4H- pyrazolo[3,4-d]pyrimidin-4- one | 315-30-0 | In stock |
Characterised impurities
| Impurity | Chemical name | Pharmacopoeia |
|---|---|---|
| Impurity "E" | Ethyl-5- (formylamino)-1H- pyrazole-4- carboxylate | BP/EP/ USP |
| Impurity "F" | (ethyl-(E/Z)-3-(2- carbethoxy-2- cyanoethenyl)amino -1H-pyrazole-4- carboxylate) | USP |
| Triethylort hoformate | Ethyl orthoformate | IHT |
| Methylcya noacetate Morpholin e | Methyl-2- cyanoacetate Diethylene oximide | IHT IHT |
| Impurity "A" | 3-Ethyl-5- methyl(4RS)-4-(2- chlorophenyl)-2-[[2- (1,3-dioxo-1,3- dihydro-2H-isoindol- 2-yl)ethoxy] methyl]-6-methyl- 1,4-dihydropyridine- 3,5-dicarboxylate | BP/EP |
| Impurity "B" | 3-Methyl 5-methyl (2-chlorophenyl)-6- methyl-2-[[2- [(2- aminoethoxy)methyl ]-1,4- dihydropyridine-3,5- dicarboxylate (Amlodipine Dimethyl Ester) | BP/EP |
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