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| Product | Description | |
|---|---|---|
| Allopurinol impurity 3 | Allopurinol impurity 3. Uses: For analytical and research use. Group: Impurity standards. Molecular Formula: C8H8N6O2. Mole Weight: 220.19. Catalog: APB06397. |  |
| Allopurinol impurity 4 | Allopurinol impurity 4. Uses: For analytical and research use. Group: Impurity standards. CAS No. 451458-32-5. Molecular Formula: C21H20N4OS. Mole Weight: 376.48. Catalog: APB451458325. | |
| Allopurinol Impurity A | A metabolite of Allopurinol. Synonyms: 5-amino-1H-pyrazole-4-carboxamide. Grades: > 95%. CAS No. 5334-31-6. Molecular formula: C4H6N4O. Mole weight: 126.12. |  |
| Allopurinol Impurity B | A metabolite of Allopurinol. Synonyms: 3-(Formylamino)-1H-pyrazole-4-carboxamide. Grades: > 95%. CAS No. 22407-20-1. Molecular formula: C5H6N4O2. Mole weight: 154.13. | |
| Allopurinol Impurity C | A metabolite of Allopurinol. Synonyms: Allopurinol Related Compound C; 3-(4H-1,2,4-Triazol-4-yl)-1H-pyrazole-4-carboxamide. Grades: > 95%. CAS No. 1346604-13-4. Molecular formula: C6H6N6O. Mole weight: 178.15. | |
| Allopurinol Impurity D | It is a metabolite of Allopurinol. Synonyms: 3-Amino-4-carbethoxypyrazole; Ethyl 3-amino-4-pyrazolecarboxylate; Allopurinol Related Compound D; Allopurinol EP Impurity D; Allopurinol USP Related Compound D; 5-Amino-1H-pyrazole-4-carboxylic acid ethyl ester; Ethyl 3-aminopyrazole-4-carboxylate. Grades: > 95 %. CAS No. 6994-25-8. Molecular formula: C6H9N3O2. Mole weight: 155.16. | |
| Allopurinol Impurity E | A metabolite of Allopurinol. Synonyms: 3-(Formylamino)-1H-pyrazole-4-carboxylic Acid Ethyl Ester. Grades: > 95%. CAS No. 31055-19-3. Molecular formula: C7H9N3O3. Mole weight: 183.17. | |
| Allopurinol Impurity F | A metabolite of Allopurinol. Synonyms: (E/Z)-3-[(2-Cyano-3-ethoxy-3-oxo-1-propenyl)amino]-1H-Pyrazole-4-carboxylic Acid Ethyl Ester. Grades: > 95%. CAS No. 321571-07-7. Molecular formula: C12H14N4O4. Mole weight: 278.27. | |
| Allopurinol Impurity F (Mixture of Z and E Isomers) | Allopurinol Impurity F (Mixture of Z and E Isomers). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: ethyl 3-((2-cyano-3-ethoxy-3-oxoprop-1-en-1-yl)amino)-1H-pyrazole-4-carboxylate. CAS No. 321571-07-7. Molecular Formula: C12H14N4O4. Mole Weight: 278.26. Catalog: APB321571077. | |
| Allopurinol-D2 (Allopurinol Impurity 1) | Allopurinol-D2 (Allopurinol Impurity 1). Uses: For analytical and research use. Group: Impurity standards. CAS No. 916979-34-5. Molecular Formula: C5H2D2N4O. Mole Weight: 138.13. Catalog: APB916979345. | |
| Allopurinol EP Impurity A | Allopurinol EP Impurity A. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 5-amino-1H-pyrazole-4-carboxamide. CAS No. 5334-31-6. Molecular Formula: C4H6N4O. Mole Weight: 126.12. Catalog: APB5334316. | |
| Allopurinol EP Impurity A (Hemisulfate) | Allopurinol EP Impurity A (Hemisulfate). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 5-amino-1H-pyrazole-4-carboxamide hemisulfate. CAS No. 27511-79-1. Molecular Formula: C4H6N4O·1/2H2SO4. Mole Weight: 175.16. Catalog: APB27511791. | |
| Allopurinol EP Impurity B | Allopurinol EP Impurity B. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 5-formamido-1H-pyrazole-4-carboxamide. CAS No. 22407-20-1. Molecular Formula: C5H6N4O2. Mole Weight: 154.13. Catalog: APB22407201. | |
| Allopurinol EP Impurity C | Allopurinol EP Impurity C. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 5-(4H-1,2,4-triazol-4-yl)-1H-pyrazole-4-carboxamide. CAS No. 1346604-13-4. Molecular Formula: C6H6N6O. Mole Weight: 178.15. Catalog: APB1346604134. | |
| Allopurinol EP Impurity D (Allopurinol USP Related Compound D) | Allopurinol EP Impurity D (Allopurinol USP Related Compound D). Uses: For analytical and research use. Group: Impurity standards. Alternative Names: ethyl 5-amino-1H-pyrazole-4-carboxylate. CAS No. 6994-25-8. Molecular Formula: C6H9N3O2. Mole Weight: 155.15. Catalog: APB6994258. | |
| Allopurinol EP Impurity E | Allopurinol EP Impurity E. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: ethyl 5-formamido-1H-pyrazole-4-carboxylate. CAS No. 31055-19-3. Molecular Formula: C7H9N3O3. Mole Weight: 183.16. Catalog: APB31055193. | |
| Allopurinol Nitrile Impurity (Allopurinol Impurity 2) | Allopurinol Nitrile Impurity (Allopurinol Impurity 2). Uses: For analytical and research use. Group: Impurity standards. CAS No. 16617-46-2. Molecular Formula: C4H4N4. Mole Weight: 108.1. Catalog: APB16617462. | |
| 3-(4H-1,2,4-Triazol-4-yl)-1H-pyrazole-4-carboxamide | An impurity of Allopurinol. Group: Biochemicals. Alternative Names: Allopurinol Impurity C. Grades: Highly Purified. Pack Sizes: 250mg. US Biological Life Sciences. |  Worldwide |
| 3-Amino-4-carbamoylpyrazole Hemisulfate | Allopurinol impurity. A pyrazole derivative that has been shown to induce neoplasm immunogenicity. Group: Biochemicals. Alternative Names: 3-Amino-1H-pyrazole-4-carboxamide Hemisulfate; 3-Amino-Pyrazole-4-carboxamide Hemisulfate. Grades: Highly Purified. CAS No. 27511-79-1. Pack Sizes: 5g. US Biological Life Sciences. | Worldwide |
| 3-(Formylamino)-1H-pyrazole-4-carboxamide | An impurity of Allopurinol with inhibitory effects on human hypoxanthine phosphoribosyl transferase. Group: Biochemicals. Alternative Names: 3-Formamidopyrazole-4-carboxamide; Allopurinol Impurity B. Grades: Highly Purified. CAS No. 22407-20-1. Pack Sizes: 250mg. US Biological Life Sciences. | Worldwide |
| 3-(Formylamino)-1H-pyrazole-4-carboxylic Acid Ethyl Ester | An impurity of Allopurinol. Group: Biochemicals. Alternative Names: 3-Formamidopyrazole-4-carboxylic Acid Ethyl Ester; Ethyl 3-(Formylamino)-1H-pyrazole-4-carboxylate; Allopurinol Impurity E. Grades: Highly Purified. Pack Sizes: 250mg. US Biological Life Sciences. | Worldwide |
| Allopurinol Sodium Salt | Allopurinol Sodium Salt. Uses: For analytical and research use. Group: Impurity standards. CAS No. 17795-21-0. Molecular Formula: C5H4N4NaO. Mole Weight: 158.1. Catalog: APB17795210. | |
| (E)-3-[(2-Cyano-3-ethoxy-3-oxo-1-propenyl)amino]-1H-pyrazole-4-carboxylic Acid Ethyl Ester | An impurity of Allopurinol. Group: Biochemicals. Alternative Names: Ethyl (E)-3-[(2-cyano-3-ethoxy-3-oxo-1-propenyl)amino]-1H-pyrazole-4-carboxylate; Ethyl 3-(2-carbethoxy-2-cyanoethenyl)amino-1H-pyrazole-4-carboxylate. Grades: Highly Purified. CAS No. 52632-17-4. Pack Sizes: 250mg. US Biological Life Sciences. | Worldwide |
| Ethyl 2-aminopyrazole-3-carboxylate | Ethyl 2-aminopyrazole-3-carboxylate. Group: Biochemicals. Alternative Names: Allopurinol Impurity D; 3-Amino-4-pyrazolecarboxylic acid ethyl ester. Grades: Highly Purified. CAS No. 6994-25-8. Pack Sizes: 10g, 25g, 50g, 100g, 250g. Molecular Formula: C6H9N3O2. US Biological Life Sciences. | Worldwide |
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