Desloratadine Impurity 25 CAS CATO-C4X-143025
| CAS No. | CATO-C4X-143025 |
| Molecular Formula | C19H17ClN2O |
| Molecular Weight | 324.80 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Desloratadine Impurity 25 (C19H17ClN2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Desloratadine Impurity 25 (CAS CATO-C4X-143025), a pharmacopoeial impurity reference standard (molecular formula C19H17ClN2O, MW 324.80 g/mol) used for the identification and quantification of trace impurities in APIs.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a certified reference material (CRM), Desloratadine Impurity 25 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 | C19H17ClN2O |
| Molecular Weight | 324.80 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Desloratadine Standards
- Desloratadine Impurity 24 (CAS CATO-C4X-143024)
- Desloratadine Impurity 30 (CAS 183198-48-3)
- Desloratadine Impurity 33 (CAS 38092-90-9)
- Desloratadine Impurity 35 (CAS 38092-88-5)
- Desloratadine Impurity 48 (CAS 119770-61-5)
- Desloratadine Impurity 16 (CAS 1346604-23-6)
- Desloratadine Impurity 17 (CAS 169253-26-3)
- Desloratadine Impurity 22 (CAS 119410-05-8)
Recommended Standards
- Hydroxychloroquine Impurity 88 (CAS CATO-C4X-183588)
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- tert-Butyl 4-[(3-chlorophenyl)carbonyl]piperazine-1-carboxylate (CAS 828299-83-8)
- Bumetanide Impurity 35 (CAS CATO-C4X-198635)
- Ilaprazole Impurity 154 (CAS CATO-C4X-1130154)
- Calcipotriol EP Impurity D (CAS 112827-99-3)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com