Daclatasvir Impurity 17 CAS CATO-C4X-184817
| CAS No. | CATO-C4X-184817 |
| Molecular Formula | C21H20N2O2 |
| Molecular Weight | 332.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Daclatasvir Impurity 17 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.
As a process- or degradation-related impurity, Daclatasvir Impurity 17 (CAS CATO-C4X-184817, C21H20N2O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Daclatasvir Impurity 17 (C21H20N2O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 332.40 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.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
Physical & Chemical Properties
| Molecular Formula | C21H20N2O2 |
| Molecular Weight | 332.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Daclatasvir Standards
- Daclatasvir Impurity 34 (CAS CATO-C4X-184834)
- Daclatasvir Impurity 10 (CAS CATO-C4X-184810)
- Daclatasvir Impurity 2 (CAS CATO-C4X-18482)
- Daclatasvir Impurity 1 (CAS 36934-45-9)
- Daclatasvir impurity 38 (CAS CATO-C4X-184838)
- Daclatasvir impurity 39 (CAS CATO-C4X-184839)
- Daclatasvir EP Impurity H (CAS 1007882-27-0)
- Daclatasvir Impurity 9 (CAS CATO-C4X-18489)
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