Theophylline EP Impurity B CAS 1076-22-8
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 1076-22-8 |
| Molecular Formula | C6H6N4O2 |
| Molecular Weight | 166.14 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Theophylline EP Impurity B (CAS 1076-22-8) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C6H6N4O2. Molecular weight: 166.14 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C6H6N4O2 |
| Molecular Weight | 166.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 4 |
Related Theophylline Standards
- Theophylline Impurity 2 (CAS 6136-37-4)
- Theophylline Impurity 8 (CAS 5309-70-6)
- Theophylline Impurity 43 (CAS 63125-83-7)
- Theophylline Impurity 3 (CAS 40012-14-4)
- Theophylline EP Impurity D (CAS 6736-40-9)
- Theophylline Impurity 27 (CAS 15837-08-8)
- Theophylline-1,3-15N2,13C (CAS 1246816-25-0)
- Theophylline-1,3-15N2-2-13C, 98% (CP) (CAS 84718-95-6)
Recommended Standards
- 7-Methylxanthine (CAS 552-62-5)
- 4-(trifluoromethyl)-1-cyclohexanone 4-(trifluoromethyl)cyclohexan-1-one 75091-99-5 A838323 (CAS 75091-99-5)
- 4-Fluoro-7-methoxy-1H-indazole (CAS 1000341-74-1)
- Diphenhydramine impurity 18 (CAS 150556-79-9)
- Teneligliptin impurity 22 (CAS 1453906-29-0)
- 6,7,8,9-Tetrahydro-5H-tetrazolo[1,5-a]azepine-9-carboxylic acid (CAS 860225-11-2)
- 4-Bromo-3-(trifluoromethyl)anisole (CAS 400-72-6)
- 4-Ethylpiperidine-2-carboxylic acid hydrochloride (CAS 1505452-01-6)
- 2H-[1,3]dioxolo[4,5-b]pyridin-5-amine (CAS 1368345-12-3)
- Cholecystokinin Octapeptide (desulfated) (CAS 25679-24-7)
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