Daclatasvir Impurity 20 CAS 1312335-98-0
| CAS No. | 1312335-98-0 |
| Molecular Formula | C40H48Cl2N8O6 |
| Molecular Weight | 807.77 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 807.77 g/mol gives Daclatasvir Impurity 20 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Daclatasvir Impurity 20 (CAS 1312335-98-0) is a certified pharmaceutical impurity reference standard with the molecular formula C40H48Cl2N8O6 and a molecular weight of 807.77 g/mol.
Based on its molecular formula C40H48Cl2N8O6, Daclatasvir Impurity 20 contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 807.77 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C40H48Cl2N8O6 |
| Molecular Weight | 807.77 g/mol |
| Purity | 97%+ |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 20.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 8 |
Related Daclatasvir Standards
- Daclatasvir Impurity 5 (CAS 1800502-75-3)
- Daclatasvir Impurity 25 (CAS CATO-C4X-184825)
- Daclatasvir Impurity 21 (CAS 1312335-97-9)
- Daclatasvir Impurity 4 (CAS 1009113-58-9)
- Daclatasvir Impurity 13 (CAS CATO-C4X-184813)
- Daclatasvir (CAS 1009119-64-5)
- Daclatasvir-D6 (CAS 1801709-41-0)
- Daclatasvir Impurity 12 (CAS 1417333-83-5)
Recommended Standards
- ((((((5-(Bromomethyl)-1,3-phenylene)bis(oxy))bis(methylene))bis(benzene-5,3,1-triyl))tetrakis(oxy))tetrakis(methylene))tetrabenzene (CAS 129536-41-0)
- Etapenem lmpurity 38 (CAS CATO-C4X-163338)
- Acarbose EP Impurity G (CAS 1013621-73-2)
- Micafungin Impurity 3 (CAS CATO-C4X-16953)
- Esaxerenone Impurity 7 (CAS 3030872-12-6)
- Fluralaner impurity 46 (CAS CATO-C4X-218046)
- Bilastine impurity 108 (CAS CATO-C4X-2253108)
- Ticagrelor impurity 166 (CAS CATO-C4X-1093166)
- N-(2-methoxyphenyl)-2-((4-phenyl-5-(m-tolyl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 483350-51-2)
- cis-2-Boc-octahydrocyclopenta[c]pyrrole-5-carboxylic Acid (CAS 1069113-47-8)
- 3-((5-Bromo-2-methoxybenzyl)amino)propan-1-ol (CAS 861410-69-7)
- N-(5-bromopyridin-2-yl)thiazol-2-amine (CAS 350511-12-5)
- (S)-2-(aminomethyl)-4-methylpentan-1-ol (CAS 1315053-63-4)
- D-[Phe]6-Semaglutide (CAS CATO-CPTD788633)
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