Pibrentasvir Impurity 4 CAS 1292836-20-4
| CAS No. | 1292836-20-4 |
| Molecular Formula | C16H12Cl2F2N2O6 |
| Molecular Weight | 437.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Pibrentasvir Impurity 4 (CAS 1292836-20-4) is a high-purity analytical reference standard with the molecular formula C16H12Cl2F2N2O6 and a molecular weight of 437.18 g/mol.
Pibrentasvir Impurity 4 (C16H12Cl2F2N2O6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
As a certified reference material (CRM), Pibrentasvir Impurity 4 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.
Physical & Chemical Properties
| Molecular Formula | C16H12Cl2F2N2O6 |
| Molecular Weight | 437.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
Related Pibrentasvir Standards
- Pibrentasvir Impurity 3 (CAS 1332356-31-6)
- Pibrentasvir impurity 5 (CAS CATO-C4X-28935)
- Pibrentasvir impurity 2 (CAS CATO-C4X-28932)
- Pibrentasvir (CAS 1353900-92-1)
- Pibrentasvir Impurity 1 (CAS CATO-C4X-28931)
- Pibrentasvir impurity 3 (CAS CATO-C4X-28933)
- Pibrentasvir impurity 4 (CAS CATO-C4X-28934)
- Pibrentasvir impurity 6 (CAS CATO-C4X-28936)
Recommended Standards
- Fipronil (CAS 120068-37-3)
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- Methyl 5-iodo-2-oxo-1-(4-(trifluoromethyl)benzyl)-1,2-dihydropyridine-3-carboxylate (CAS 937602-50-1)
- 3,6-Dibromo-9-(2-ethylhexyl)-9H-carbazole (CAS 173063-52-0)
- 3,4-Dichloro-2-ethylbenzophenone (CAS 951885-03-3)
- (2S)-2-Amino-1-(3-((isopropyl(methyl)amino)methyl)piperidin-1-yl)-3-methylbutan-1-one (CAS 1354024-66-0)
- 1-(4-(Methylsulfonyl)benzyl)piperazine (CAS 1082399-22-1)
- 1-Amino-3,3,3-trifluoro-2,2-dimethylpropane Hydrochloride (CAS 1803606-63-4)
- (E)-2-(2H-1,3-Benzodioxol-5-yl)-N-[(thiophen-2-yl)methyl]ethene-1-sulfonamide (CAS 339018-46-1)
- (3R,4S)-4-Methylpyrrolidin-3-amine (CAS 777824-43-8)
- 2-Methyl-2-(pyridin-3-yloxy)propanoic acid (CAS 49802-96-2)
- 4-(4,5-Dimethyl-1H-imidazol-2-yl)piperidine (CAS 933750-43-7)
- (1-(3-(Trifluoromethyl)phenyl)cyclopropyl)methanol (CAS 886366-41-2)
- semaglutide (CAS 782487-28-9)
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