Norfloxacin Impurity 4 CAS 75073-15-3
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 75073-15-3 |
| Molecular Formula | C12H9ClFNO3 |
| Molecular Weight | 269.66 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Norfloxacin Impurity 4 (CAS 75073-15-3) is a pharmacopoeial impurity standards certified reference material from CATO. Molecular formula: C12H9ClFNO3. Molecular weight: 269.66 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C12H9ClFNO3 |
| Molecular Weight | 269.66 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.) | 1978 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 1 |
Related Norfloxacin Standards
- Norfloxacin Impurity C70 (CAS 106847-38-5)
- Norfloxacin Impurity C18 (CAS 70458-93-4)
- Norfloxacin EP Impurity A (CAS 68077-26-9)
- Norfloxacin Impurity 60 (CAS CATO-C4X-146860)
- Norfloxacin EP Impurity D (CAS 75001-82-0)
- Norfloxacin Impurity 52 (CAS 7251-32-3)
- Norfloxacin Impurity 59 (CAS CATO-C4X-146859)
- Norfloxacin Impurity 53 (CAS 70459-06-2)
Recommended Standards
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- Pefloxacin EP Impurity H (CAS 106847-40-9)
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