Baloxavir Marboxil Impurity 239 CAS 1824026-96-1
| CAS No. | 1824026-96-1 |
| Molecular Formula | C10H9BrF2O2 |
| Molecular Weight | 279.08 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Baloxavir Marboxil Impurity 239 (CAS 1824026-96-1) is a certified pharmaceutical impurity reference standard with the molecular formula C10H9BrF2O2 and a molecular weight of 279.08 g/mol.
Based on its molecular formula C10H9BrF2O2, Baloxavir Marboxil Impurity 239 contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 279.08 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), Baloxavir Marboxil Impurity 239 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 | C10H9BrF2O2 |
| Molecular Weight | 279.08 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | ≥95% |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | F/Br-containing |
Related Baloxavir Standards
- Baloxavir Marboxil Impurity 206 (CAS CATO-C4X-2108206)
- Baloxavir impurity 80 (CAS 2136287-77-7)
- Baloxavir Impurity 62 (CAS CATO-C4X-210862)
- Baloxavir Impurity 107 (CAS 2136287-64-2)
- Baloxavir Marboxil Impurity 158 (CAS CATO-C4X-2108158)
- Baloxavir Marboxil Impurity 216 (CAS CATO-C4X-2108216)
- Baloxavir Marboxil Impurity 226 (CAS CATO-C4X-2108226)
- Baloxavir Impurity 106 (CAS CATO-C4X-2108106)
Recommended Standards
- Ethyl 2-(3-Bromophenyl)-2,2-difluoroacetate (CAS 885068-75-7)
- 5-Bromo-1-(cyanomethyl)-1H-indole-2-carboxylic acid (CAS 1032715-49-3)
- Dipropyl 3,3'-thiodipropanoate (CAS 4275-35-8)
- 2-(3-Bromophenyl)pyrimidine-5-carboxylic acid (CAS 1086393-70-5)
- Rifampicin EP Impurity B (CAS 125833-03-6)
- Avatrombopag impurity 133 (CAS CATO-C4X-2234133)
- Norepinephrine Impurity 57 (CAS 29477-54-1)
- N-(Furan-2-ylmethyl) 4-fluorobenzenesulfonamide (CAS 6341-35-1)
- (S)-1-(4-propylphenyl)ethan-1-amine (CAS 212968-68-8)
- 5-Chloro-6-propoxybenzofuran-2-carboxylic acid (CAS 1352512-36-7)
- Sodium hexachloroiridium(IV)ate hexahydrate (CAS 19567-78-3)
- N-(4-Anilinophenyl)-5-oxoprolinamide (CAS 1008497-94-6)
- (S)-1-(5-(4-Bromophenyl)oxazol-2-yl)ethanamine (CAS 1821813-97-1)
- Semaglutide impurity 205 (CAS CATO-C4X-2226205)
Why CATO?
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