Indacaterol Impurity 20 CAS 2250243-41-3
| CAS No. | 2250243-41-3 |
| Molecular Formula | C26H32N2O3 |
| Molecular Weight | 420.54 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 420.54 g/mol gives Indacaterol Impurity 20 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Indacaterol Impurity 20 (CAS 2250243-41-3, C26H32N2O3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Indacaterol Impurity 20 (C26H32N2O3) 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 420.54 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.
As a certified reference material (CRM), Indacaterol Impurity 20 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 | C26H32N2O3 |
| Molecular Weight | 420.54 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Nitrogen Atoms | 2 |
Related Indacaterol Standards
- Indacaterol Impurity 11 (CAS CATO-C4X-150011)
- Indacaterol Impurity 63 (CAS CATO-C4X-150063)
- Indacaterol Impurity 29 (CAS 1446354-19-3)
- Indacaterol Impurity 15 (CAS CATO-C4X-150015)
- Indacaterol Impurity 17 (CAS CATO-C4X-150017)
- Indacaterol Impurity 88 (CAS CATO-C4X-150088)
- Indacaterol Impurity 34 (CAS CATO-C4X-150034)
- Indacaterol-d3 (CAS 2699828-16-3)
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