Cyclobenzaprine Impurity 9 CAS CATO-C4X-15999
| CAS No. | CATO-C4X-15999 |
| Molecular Formula | C20H21NO |
| Molecular Weight | 291.39 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, Cyclobenzaprine Impurity 9 (CAS CATO-C4X-15999, C20H21NO) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Cyclobenzaprine Impurity 9 (C20H21NO) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 291.39 g/mol, it falls into the medium-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.
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 | C20H21NO |
| Molecular Weight | 291.39 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Cyclobenzaprine Standards
- Cyclobenzaprine-10,11-epoxide (CAS 58256-08-9)
- Cyclobenzaprine Impurity 5 (CAS 6682-26-4)
- Cyclobenzaprine Impurity 8 (CAS CATO-C4X-15998)
- Cyclobenzaprine USP Related Compound A (CAS 18029-54-4)
- Cyclobenzaprine-d3 N-Oxide (CAS 1189877-07-3)
- Cyclobenzaprine Impurity 3 (CAS 24167-44-0)
- Cyclobenzaprine (CAS 303-53-7)
- Cyclobenzaprine Didesmethyl hydrochloride (CAS 1614-47-7)
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- 4-amino-6-chloro-2-methyl-pyrimidine-5-carbaldehyde (CAS 51290-87-0)
- 4-Phenyl-2-(2-(pyrrolidin-1-yl)ethyl)-6-(3-(trifluoromethyl)phenyl)pyridazin-3(2H)-one (CAS 23419-43-4)
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