Ozefloxacin Impurity 8 CAS 103877-38-9
| CAS No. | 103877-38-9 |
| Molecular Formula | C16H17Cl2NO3 |
| Molecular Weight | 342.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Ozefloxacin Impurity 8 (CAS 103877-38-9, C16H17Cl2NO3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Ozefloxacin Impurity 8 (C16H17Cl2NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 342.22 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Ozefloxacin Impurity 8 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C16H17Cl2NO3 |
| Molecular Weight | 342.22 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 |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; 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.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Ozefloxacin Standards
- Ozefloxacin Impurity 11 (CAS CATO-C4X-279611)
- Ozefloxacin Impurity 12 (CAS CATO-C4X-279612)
- Ozefloxacin Impurity 13 (CAS CATO-C4X-279613)
- Ozefloxacin Impurity 17 (CAS CATO-C4X-279617)
- Ozefloxacin Impurity 19 (CAS 2241304-66-3)
- Ozefloxacin Impurity 9 (CAS CATO-C4X-27969)
- Ozefloxacin Impurity 21 (CAS 2767548-38-7)
- Ozefloxacin Impurity 22 (CAS CATO-C4X-279622)
Recommended Standards
- Ozenoxacin Impurity 41 (CAS CATO-C4X-279641)
- Resmetirom Impurity 100 (CAS CATO-C4X-2912100)
- Ozenoxacin Impurity 40 (CAS CATO-C4X-279640)
- Resmetirom Impurity 127 (CAS CATO-C4X-2912127)
- Alogliptin Impurity 26 (CAS CATO-C4X-109926)
- Semaglutide impurity 41 (CAS CATO-C4X-222641)
- Tetrabenazine Impurity 59 (CAS CATO-C4X-274859)
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