Rocuronium Impurity 57 CAS CATO-C4X-124257
| CAS No. | CATO-C4X-124257 |
| Molecular Formula | C21H30O4 |
| Molecular Weight | 346.46 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.
As a process- or degradation-related impurity, Rocuronium Impurity 57 (CAS CATO-C4X-124257, C21H30O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Rocuronium Impurity 57 (C21H30O4) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C21H30O4 |
| Molecular Weight | 346.46 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Rocuronium Standards
- Rocuronium Impurity 10 (CAS 50588-22-2)
- Rocuronium Impurity 54 (CAS CATO-C4X-124254)
- Rocuronium Impurity 43 (CAS CATO-C4X-124243)
- Rocuronium impurity 66 (CAS 930092-99-2)
- Rocuronium Bromide Impurity 24 (CAS 119302-19-1)
- Rocuronium Impurity 27 (CAS CATO-C4X-124227)
- Rocuronium Bromide Impurity 47 (CAS CATO-C4X-124247)
- Rocuronium impurity 67 (CAS CATO-C4X-124267)
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