Tetrabenazine Impurity 49 CAS CATO-C4X-274849
| CAS No. | CATO-C4X-274849 |
| Molecular Formula | - |
| Molecular Weight | 323.46 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 process- or degradation-related impurity, Tetrabenazine Impurity 49 (CAS CATO-C4X-274849, C19H21D6NO3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Tetrabenazine Impurity 49 (C19H21D6NO3) contains deuterium isotope labeling, a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 323.46 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C19H21D6NO3 |
| Molecular Weight | 323.46 g/mol |
| Appearance | Pale yellow to 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Tetrabenazine Standards
- Tetrabenazine Impurity 38-d6 (CAS 2244238-16-0)
- Tetrabenazine Impurity 56-d6 (CAS CATO-C4X-274856)
- Tetrabenazine Impurity 20-D6 (CAS 2244238-17-1)
- Tetrabenazine Impurity 51 (CAS CATO-C4X-274851)
- Tetrabenazine Impurity 10 (CAS 583277-30-8)
- Tetrabenazine Impurity 11 (CAS 1583277-32-0)
- Tetrabenazine Impurity 29-D6 (CAS CATO-C4X-274829)
- Tetrabenazine Metabolite (CAS 924854-60-4)
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- 1-(3-Chloro-4-hydroxyphenyl)-5-methoxy-1H-pyrazole-3-carboxamide (CAS 77935-72-9)
- [2-(Methylamino)-2-phenylethyl]dimethylamine (CAS 858523-65-6)
- 1-(1H-Pyrrolo[2,3-b]pyridin-6-yl)ethan-1-amine (CAS 2090754-68-8)
- [2-(Methylsulfanyl)phenyl]methyl N-(3-chlorophenyl)carbamate (CAS 338968-10-8)
- 1-(2,6-Difluoro-4-iodopyridin-3-yl)ethan-1-one (CAS 2863532-63-0)
- [L-allo-Thr4]-Atosiban (CAS CATO-C4X-229366)
- Semaglutide impurity 194 (CAS CATO-C4X-2226194)
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