Baloxavir impurity C94 CAS 1985606-40-3
| CAS No. | 1985606-40-3 |
| Molecular Formula | C27H24FN3O7S |
| Molecular Weight | 553.56 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Baloxavir impurity C94 (CAS 1985606-40-3), a pharmacopoeial impurity reference standard (molecular formula C27H24FN3O7S, MW 553.56 g/mol) used for the identification and quantification of trace impurities in APIs.
Baloxavir impurity C94 (C27H24FN3O7S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C27H24FN3O7S |
| Molecular Weight | 553.56 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) | 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 Impurity 101 (CAS CATO-C4X-2108101)
- Baloxavir Marboxil Impurity 198 (CAS CATO-C4X-2108198)
- Baloxavir Marboxil Impurity 234 (CAS CATO-C4X-2108234)
- Baloxavir Impurity 31 (CAS 2954948-28-6)
- Baloxavir Impurity C65 (CAS 2374735-31-4)
- Baloxavir Marboxil Impurity 151 (CAS CATO-C4X-2108151)
- Baloxavir Marboxil Impurity 192 (CAS CATO-C4X-2108192)
- Baloxavir Marboxil Impurity 195 (CAS CATO-C4X-2108195)
Recommended Standards
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- Lamivudine Impurity 20 (CAS CATO-C4X-119420)
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- (5R)-9-fluoro-2,3,4,5-tetrahydro-1-benzoxepin-5-ol (CAS 1567880-97-0)
- 3-Methylisoxazolo[5,4-d]pyrimidine-4(5H)-thione (CAS 130783-68-5)
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- 1-(Benzo[d][1,3]dioxol-5-yl)-N-phenylmethanimine (CAS 853099-64-6)
- Des-Ile12-Aib13-Tirzepatide (CAS CATO-CPTD788960)
Why CATO?
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