Daptomycin Impurity 4 CAS CATO-C4X-13784
| CAS No. | CATO-C4X-13784 |
| Molecular Formula | C72H101N17O26 |
| Molecular Weight | 1620.67 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Daptomycin Impurity 4 (CAS CATO-C4X-13784, C72H101N17O26) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Daptomycin Impurity 4 (C72H101N17O26) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C72H101N17O26 |
| Molecular Weight | 1620.67 g/mol |
| Purity | 97%+ |
| 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 |
| Degree of Unsaturation (DBE) | 31.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 17 |
Related Daptomycin Standards
- Daptomycin (CAS 103060-53-3)
- Daptomycin Beta-Isomer (CAS 123180-72-3)
- Daptomycin Impurity 30 (CAS CATO-C4X-137830)
- Daptomycin Impurity 37 (CAS CATO-C4X-137837)
- Daptomycin Impurity 39 (CAS CATO-C4X-137839)
- Daptomycin Impurity 56 (CAS CATO-C4X-137856)
- Daptomycin Impurity 21 (CAS CATO-C4X-137821)
- Daptomycin Impurity 32 (CAS CATO-C4X-137832)
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- 5-Amino-2-isopropylphenol (CAS 850085-99-3)
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