Baloxavir Marboxil Impurity 197 CAS 1985606-16-3
| CAS No. | 1985606-16-3 |
| Molecular Formula | C26H21F2N3O5S |
| Molecular Weight | 525.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Baloxavir Marboxil Impurity 197.
As a process- or degradation-related impurity, Baloxavir Marboxil Impurity 197 (CAS 1985606-16-3, C26H21F2N3O5S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C26H21F2N3O5S, Baloxavir Marboxil Impurity 197 contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 525.52 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C26H21F2N3O5S |
| Molecular Weight | 525.52 g/mol |
| Purity | ≥95% |
| 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) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Baloxavir Standards
- Baloxavir Marboxil Impurity 215 (CAS CATO-C4X-2108215)
- Baloxavir defluorinated Impurity 87 (CAS CATO-C4X-210887)
- Baloxavir Impurity 75 (CAS CATO-C4X-210875)
- Baloxavir Marboxil Impurity 176 (CAS CATO-C4X-2108176)
- Baloxavir Impurity 42 (CAS 2365473-17-0)
- Baloxavir Impurity C19 (CAS 1985606-48-1)
- Baloxavir Impurity 124 (CAS CATO-C4X-2108124)
- Baloxavir Impurity 149 (CAS CATO-C4X-2108149)
Recommended Standards
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- Ethyl 5-amino-1-(cyclopropylmethyl)-1H-pyrazole-3-carboxylate (CAS 1427022-21-6)
- Methyl (1S,3S)-rel-3-bromocyclopentane-1-carboxylate (CAS 2055840-88-3)
- 1-FLUORO-2-METHOXY-6-(METHYLSULPHONYL)BENZENE 1-FLUORO-2-METHOXY-6-METHYLSULFONYLBENZENE 2-Fluoro-3-(methylsulphonyl)anisole 942474-33-1 AS04273 (CAS 942474-33-1)
- 2-(Methylthio)-7-(trifluoromethyl)-7,8-dihydroquinazolin-5(6H)-one (CAS 1420789-85-0)
- Dopamine Impurity 114 (CAS CATO-C4X-1908114)
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