Favipiravir Impurity 4 CAS 259794-06-4
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 259794-06-4 |
| Molecular Formula | C7H7BrN2O3 |
| Molecular Weight | 247.05 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Favipiravir Impurity 4 (CAS 259794-06-4) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C7H7BrN2O3. Molecular weight: 247.05 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C7H7BrN2O3 |
| Molecular Weight | 247.05 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Favipiravir Standards
- Favipiravir Impurity 24 (CAS 6966-01-4)
- Favipiravir Impurity 24 (CAS CATO-C4X-210224)
- Favipiravir Impurity 23 (CAS 440124-25-4)
- Favipiravir Impurity 19 (CAS 1257072-34-6)
- Favipiravir Impurity 3 (CAS 259793-88-9)
- Favipiravir Impurity 17 (CAS 6329-74-4)
- Favipiravir Impurity 23 (CAS 356783-14-7)
- Favipiravir Impurity 21 (CAS CATO-C4X-210221)
Recommended Standards
- 1-BROMO-4-(TRIFLUOROMETHYL)BENZENE 1-BROMO-4-(TRIFLUOROMETHYL)BENZOLE 1-Bromo-4-(trifluoromethoxy)benzene 4-(TRIFLUOROMETHOXY)BROMOBENZENE 4-(TRIFLUOROMETHYL)BROMOBENZENE 4-BROMO(TRIFLUOROMETHOXY)BENZENE 4-BROMO-1-TRIFLUOROMETHYLBENZENE 4-BROMO-A,A,A-TRIFLUOROTOLUENE 4-BROMO-ALPHA,ALPHA,ALPHA-TRIFLUOROANISOLE 4-BROMO-ALPHA,ALPHA,ALPHA-TRIFLUOROTOLUENE 4-BROMOA-TRIFLUOROMETHOXYBENZENE 4-BROMOBENZOTRIFLUORIDE 4-BROMOTRIFLUOROTOLUENE 407-14-7 AS00244 BENZENE, 1-BROMO-4-(TRIFLUOROMETHYL)- P-BROMO-ALPHA,ALPHA,ALPHA-TRIFLUOROTOLUENE P-BROMOBENZOTRIFLUORIDE P-BROMOTRIFLUOROMETHOXYBENZENE P-BROMOTRIFLUOROMETHYLBENZENE P-TRIFLUOROMETHOXY BROMOBENZENE TIMTEC-BB SBB006606 (CAS 407-14-7)
- 2-Bromo-5-fluorobenzenepropanoic acid (CAS 1003048-71-2)
- 1-BROMO-3-(TRIFLUOROMETHOXY)BENZENE 2252-44-0 3- (Trifluoromethoxy) bromobenzene 3-(TRIFLUOROMETHOXY)BROMOBENZENE 3-BROMO(TRIFLUOROMETHOXY)BENZENE 3-BROMO-1-(TRIFLUOROMETHOXY)BENZENE 3-BROMO-ALPHA,ALPHA,ALPHA-TRIFLUOROANISOLE 3-BROMOPHENYL TRIFLUOROMETHYL ETHER BENZENE, 1-BROMO-3-(TRIFLUOROMETHOXY)- LF10284 M-BROMO(TRIFLUOROMETHOXY)BENZENE (CAS 2252-44-0)
- Ramosetron Impurity 12 (CAS 171967-74-1)
- Atrasentan Impurity 179 (CAS 1059052-09-3)
- H-DL-Val-OH (CAS 516-06-3)
- 5-Ethyl-4-(tetrahydrofuran-2-ylmethyl)-4H-1,2,4-triazole-3-thiol (CAS 869944-96-7)
- 2-(5-Amino-2-methoxyphenoxy)-N,N-diethylacetamide (CAS 953883-09-5)
- 3-[4-Bromo-2-(tert-butyl)phenoxy]pyrrolidinehydrochloride (CAS 1220017-73-1)
- Semaglutide impurity 86 (CAS CATO-C4X-222686)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com