Omadacycline impurity 18 CAS CATO-C4X-285718
| CAS No. | CATO-C4X-285718 |
| Molecular Formula | C30H43N5O7 |
| Molecular Weight | 585.69 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Omadacycline impurity 18 (CAS CATO-C4X-285718, C30H43N5O7) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Omadacycline impurity 18 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 585.69 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C30H43N5O7 |
| Molecular Weight | 585.69 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | ＞90% |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Omadacycline Standards
- Omadacycline impurity 19 (CAS CATO-C4X-285719)
- Omadacycline Impurity 28 (CAS CATO-C4X-285728)
- Omadacycline Impurity 50 (CAS CATO-C4X-285750)
- Omadacycline Impurity 32 (CAS CATO-C4X-285732)
- Omadacycline Impurity 25 (CAS CATO-C4X-285725)
- Omadacycline Impurity 30 (CAS CATO-C4X-285730)
- Omadacycline Impurity 47 (CAS CATO-C4X-285747)
- Omadacycline Impurity 48 (CAS CATO-C4X-285748)
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- CAS CATO-C3D-262676 (CAS CATO-C3D-262676)
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