Norfloxacin Impurity C822 CAS 67681-88-3
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 67681-88-3 |
| Molecular Formula | C12H9Cl2NO3 |
| Molecular Weight | 286.11 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Norfloxacin Impurity C822 (CAS 67681-88-3) is a high-purity pharmacopoeial impurity standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C12H9Cl2NO3. Molecular weight: 286.11 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C12H9Cl2NO3 |
| Molecular Weight | 286.11 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Norfloxacin Standards
- Norfloxacin Impurity 53 (CAS 70459-06-2)
- Norfloxacin Impurity 58 (CAS CATO-C4X-146858)
- Norfloxacin Impurity 59 (CAS CATO-C4X-146859)
- Norfloxacin Impurity 61 (CAS CATO-C4X-146861)
- Norfloxacin EP Impurity D (CAS 75001-82-0)
- Norfloxacin Impurity C171 (CAS 106847-39-6)
- Norfloxacin Impurity C70 (CAS 106847-38-5)
- Norfloxacin Impurity C18 (CAS 70458-93-4)
Recommended Standards
- N-(2-iodophenyl)-3,4-dihydro-2H-pyrrol-5-amine (CAS 745028-14-2)
- Tert-butyl 4-bromo-3,3-difluoropyrrolidine-1-carboxylate (CAS 2167546-25-8)
- Methyl 5-amino-1-(2,4-dichlorophenyl)-1H-pyrazole-4-carboxylate (CAS 83279-65-6)
- Avatrombopag Impurity 24 (CAS 1534575-19-3)
- Cefpodoxime Proxetil Impurity 42 (CAS CATO-C4X-157942)
- 1,3,5-Trimethyl-2-tosylbenzene (CAS 5184-64-5)
- 2-Chloro-5h,6h,7h-cyclopenta[d]pyrimidin-4-amine (CAS 76780-97-7)
- Tobramycin Impurity 26 (CAS CATO-C4X-220026)
- 5-[(4-fluorophenyl)sulfamoyl]-2-methylbenzoic acid (CAS 325721-90-2)
- Cycloaspeptide D (CAS 691363-62-9)
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