Desloratadine Impurity 29 CAS 79779-58-1
| CAS No. | 79779-58-1 |
| Molecular Formula | C22H24N2O2 |
| Molecular Weight | 348.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Desloratadine Impurity 29 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
CATO supplies Desloratadine Impurity 29 (CAS 79779-58-1), a pharmacopoeial impurity reference standard (molecular formula C22H24N2O2, MW 348.44 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Desloratadine Impurity 29 (C22H24N2O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 348.44 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.
Physical & Chemical Properties
| Molecular Formula | C22H24N2O2 |
| Molecular Weight | 348.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Nitrogen Atoms | 2 |
Related Desloratadine Standards
- Iso Desloratadine Hydrochloride (CAS 432543-89-0)
- Desloratadine Impurity 9 (CAS 117796-52-8)
- Desloratadine Impurity 34 (CAS CATO-C4X-143034)
- Desloratadine Impurity 28 (CAS CATO-C4X-143028)
- Desloratadine impurity 66 (CAS CATO-C4X-143066)
- Desloratadine Related Compound A (CAS 117796-50-6)
- Desloratadine Impurity 64 (CAS CATO-C4X-143064)
- Desloratadine Impurity 65 (CAS CATO-C4X-143065)
Recommended Standards
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- Palmitoyl Tripeptide-8 TFA salt (CAS 936544-53-5)
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 18665070610 / Nicole.chen@cato-chem.com