Levocetirizine Impurity 72 CAS CATO-C4X-108372
| CAS No. | CATO-C4X-108372 |
| Molecular Formula | C28H39ClN2O7 |
| Molecular Weight | 551.07 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Levocetirizine Impurity 72 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.
As a process- or degradation-related impurity, Levocetirizine Impurity 72 (CAS CATO-C4X-108372, C28H39ClN2O7) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Levocetirizine Impurity 72 (C28H39ClN2O7) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C28H39ClN2O7 |
| Molecular Weight | 551.07 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | ≥95% |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Levocetirizine Standards
- Levocetirizine Impurity 71 (CAS CATO-C4X-108371)
- Levocetirizine Impurity 78 (CAS CATO-C4X-108378)
- Levocetirizine Impurity 73 (CAS CATO-C4X-108373)
- Levocetirizine Impurity 58 (CAS CATO-C4X-108358)
- Levocetirizine Impurity 45 (CAS 1150310-68-1)
- Levocetirizine Impurity 64 (CAS CATO-C4X-108364)
- Levocetirizine Impurity 47 (CAS CATO-C4X-108347)
- Levocetirizine Impurity 19 (CAS CATO-C4X-108319)
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