Atracurium Impurity 41 CAS CATO-C4X-185041
| CAS No. | CATO-C4X-185041 |
| Molecular Formula | C53H70N2O13 |
| Molecular Weight | 943.13 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Atracurium Impurity 41 (CAS CATO-C4X-185041) is a certified pharmaceutical impurity reference standard with the molecular formula C53H70N2O13 and a molecular weight of 943.13 g/mol.
The molecular framework of Atracurium Impurity 41 (C53H70N2O13) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
Physical & Chemical Properties
| Molecular Formula | C53H70N2O13 |
| Molecular Weight | 943.13 g/mol |
| Purity | >95% |
| 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) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Atracurium Standards
- Atracurium Impurity 11 (CAS 1193104-79-8)
- Atracurium EP Impurity K (CAS CATO-C4X-185057)
- Atracurium Impurity 49 (CAS CATO-C4X-185049)
- Atracurium Impurity 20 (CAS 96946-41-7)
- Atracurium Impurity 53 (CAS 64228-79-1)
- Atracurium EP Impurity A (CAS 87046-74-0)
- Atracurium EP Impurity B (CAS 64228-77-9)
- Atracurium EP Impurity C (CAS CATO-C4X-185063)
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