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| Product | Description | |
|---|---|---|
| Theophylline Impurity 10 | Theophylline Impurity 10. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1429636-73-6. Molecular Formula: C9H12N4O4. Mole Weight: 240.22. Catalog: APB1429636736. |  |
| Theophylline Impurity 11 | Theophylline Impurity 11. Uses: For analytical and research use. Group: Impurity standards. CAS No. 39726-70-0. Molecular Formula: C17H20N8O5. Mole Weight: 416.4. Catalog: APB39726700. | |
| Theophylline Impurity 13 | Theophylline Impurity 13. Uses: For analytical and research use. Group: Impurity standards. CAS No. 6642-31-5. Molecular Formula: C6H9N3O2. Mole Weight: 155.16. Catalog: APB6642315. | |
| Theophylline Impurity 2 | An impurity of Dyphylline which is a xanthine derivative used to relieve breathing problems caused by bronchial asthma, chronic bronchitis, or emphysema. Grades: > 95%. Molecular formula: C9H12N4O4. Mole weight: 240.22. |  |
| Theophylline Impurity 22 | Theophylline Impurity 22. Uses: For analytical and research use. Group: Impurity standards. CAS No. 62637-09-6. Molecular Formula: C9H12N4O4. Mole Weight: 240.22. Catalog: APB62637096. | |
| Theophylline Impurity 23 | Theophylline Impurity 23. Uses: For analytical and research use. Group: Impurity standards. CAS No. 23146-07-8. Molecular Formula: C10H12N4O3. Mole Weight: 236.23. Catalog: APB23146078. | |
| Theophylline Impurity 26 | Theophylline Impurity 26. Uses: For analytical and research use. Group: Impurity standards. CAS No. 62402-01-1. Molecular Formula: C22H30N6O6. Mole Weight: 474.52. Catalog: APB62402011. | |
| Theophylline Impurity 28 | Theophylline Impurity 28. Uses: For analytical and research use. Group: Impurity standards. CAS No. 85-18-7. Molecular Formula: C7H7ClN4O2. Mole Weight: 214.61. Catalog: APB85187. | |
| Theophylline Impurity 3 | An impurity of Dyphylline which is a theophylline derivative used to treat and prevent wheezing and trouble breathing caused by ongoing lung disease. Synonyms: 1,3-Dimethyluric acid; 944-73-0; Oxytheophylline; 1,3-diMethyl-1H-purine-2,6,8(3H,7H,9H)-trione; Ba 2751; 1,3-Dimethylurate; 1,3-dimethyl-7,9-dihydropurine-2,6,8-trione; Uric acid, 1,3-dimethyl-; 1H-Purine-2,6,8(3H)-trione, 7,9-dihydro-1,3-dimethyl-; 7,9-Dihydro-1,3-dimethyl-1H-purine-2,6,8(3H)-trione. Grades: > 95%. CAS No. 944-73-0. Molecular formula: C7H8N4O3. Mole weight: 196.17. | |
| Theophylline Impurity 4 | Theophyline impurity. Synonyms: 9-(1,3-Dioxolan-2-ylmethyl)-3,9-dihydro-1,3-dimethyl-1H-purine-2,6-dione. Grades: > 95%. CAS No. 1174289-18-9. Molecular formula: C11H14N4O4. Mole weight: 266.25. | |
| Theophylline Impurity 5 | An impurity of Dyphylline which is a mainstay of therapy in some patients with acute and chronic obstructive airway disease. Grades: > 95%. Molecular formula: C10H16N4O3. Mole weight: 240.26. | |
| Theophylline Impurity 7 | Theophylline Impurity 7. Uses: For analytical and research use. Group: Impurity standards. CAS No. 60797-68-4. Molecular Formula: C7H10N4O3. Mole Weight: 198.18. Catalog: APB60797684. | |
| Theophylline Impurity 8 | Theophylline Impurity 8. Uses: For analytical and research use. Group: Impurity standards. CAS No. 136145-07-8. Molecular Formula: C14H13ClN4O2. Mole Weight: 304.73. Catalog: APB136145078. | |
| Theophylline EP Impurity B | Theophylline EP Impurity B. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 3-methyl-1H-purine-2,6(3H,7H)-dione. CAS No. 1076-22-8. Molecular Formula: C6H6N4O2. Mole Weight: 166.14. Catalog: APB1076228. | |
| Theophylline EP Impurity C | Theophylline EP Impurity C. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: N-(6-amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)formamide. CAS No. 7597-60-6. Molecular Formula: C7H10N4O3. Mole Weight: 198.18. Catalog: APB7597606. | |
| 7-butyl-1,3-dimethylpurine-2,6-dione | Doxofylline Impurity 13 is a Doxofylline impurity. Doxofylline is a phosphodiesterase inhibitor and a xanthine derivative drug for asthma. Synonyms: 7-Butyltheophylline; Theophylline,7-butyl-; UNII-N2R6WU63DY; BRN0250158. Grades: 95%. CAS No. 1021-65-4. Molecular formula: C11H16N4O2. Mole weight: 236.27. | |
| Caffeine EP impurity A | Caffeine EP impurity A. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Theophylline; Pentoxifylline EP Impurity C; Dimenhydrinate EP Impurity A. CAS No. 58-55-9. Molecular Formula: C7H8N4O2. Mole Weight: 180.17. Catalog: APB58559. | |
| Doxofylline Impurity 10 | Doxofylline Impurity 10 is a Doxofylline impurity. Doxofylline is a phosphodiesterase inhibitor and a xanthine derivative drug for asthma. Synonyms: ethyl 7-theophyllineacetate; (1,3-dimethyl-2,6-dioxo-1,2,3,6-tetrahydro-purin-7-yl)-acetic acid ethyl ester. CAS No. 7029-96-1. Molecular formula: C11H14N4O4. Mole weight: 266.25. | |
| Doxofylline Impurity 2 | Doxofylline Impurity 2 (Theophylline Impurity 2) is a Doxofylline impurity. Doxofylline is a phosphodiesterase inhibitor and a xanthine derivative drug for asthma. Synonyms: Theophylline Impurity 1; 1,2,3,6-Tetrahydro-1,3-dimethyl-2,6-dioxopurine-7-acetaldehyde; 7-(Formylmethyl)theophylline; 7-Theophyllineacetaldehyde. Grades: > 95%. CAS No. 5614-53-9. Molecular formula: C9H10N4O3. Mole weight: 222.20. | |
| Doxofylline Impurity 9 | Doxofylline Impurity 9 is a Doxofylline impurity. Doxofylline is a phosphodiesterase inhibitor and a xanthine derivative drug for asthma. Synonyms: 7-(2',2'-Diethoxyethyl)theophylline1111. CAS No. 43135-57-5. Molecular formula: C13H20N4O4. Mole weight: 296.32. | |
| Theophylline-7-acetic acid | Theophylline-7-acetic acid. Uses: For analytical and research use. Group: Impurity standards. CAS No. 652-37-9. Molecular Formula: C9H10N4O4. Mole Weight: 238.2. Catalog: APB652379. | |
| 7-(2-Cyanoethyl)-theophylline | 7-(2-Cyanoethyl)-theophylline is one of Caffeine impurities. Caffeine is a CNS stimulant. Alkaloid, purified from plants of Coffea genus, Rubiaceae. Synonyms: 1,2,3,6-Tetrahydro-1,3-dimethyl-2,6-dioxo-7H-purine-7-propanenitrile; 3-(1,3-Dimethyl-2,6-dioxo-1,2,3,6-tetrahydropurin-7-yl)propanenitrile; 1,3-dimethyl-7H-xanthine-7-propanenitrile; 7-Cyanoethyltheophylline; 7H-Purine-7-propanenitrile,1,2,3,6-tetrahydro-1,3-dimethyl-2,6-dioxo. Grades: 98%. CAS No. 1811-38-7. Molecular formula: C10H11N5O2. Mole weight: 233.23. | |
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