Baloxavir Impurity 142 CAS CATO-C4X-2108142
| CAS No. | CATO-C4X-2108142 |
| Molecular Formula | C9H7BrF2O2 |
| Molecular Weight | 265.05 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Baloxavir Impurity 142 is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Baloxavir Impurity 142 (CAS CATO-C4X-2108142), a pharmacopoeial impurity reference standard (molecular formula C9H7BrF2O2, MW 265.05 g/mol) used for the identification and quantification of trace impurities in APIs.
Baloxavir Impurity 142 (C9H7BrF2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/bromine substitution, an aromatic ring system. 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
CATO manufactures Baloxavir Impurity 142 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H7BrF2O2 |
| Molecular Weight | 265.05 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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 |
| Halogen Content | F/Br-containing |
Related Baloxavir Standards
- Baloxavir Marboxil Impurity 184 (CAS 2417354-05-1)
- Baloxavir Marboxil Impurity 190 (CAS CATO-C4X-2108190)
- Baloxavir Marboxil Impurity 193 (CAS 2591558-80-2)
- Baloxavir Impurity 29 (CAS 1985607-83-7)
- Baloxavir Impurity 41 (CAS CATO-C4X-210841)
- Baloxavir Impurity 57 (CAS 2496644-37-0)
- Baloxavir Marboxil Impurity 240 (CAS CATO-C4X-2108240)
- Baloxavir Impurity 137 (CAS CATO-C4X-2108137)
Recommended Standards
- n-Carbamoyl-2-(4,5-dichloro-6-oxopyridazin-1(6h)-yl)acetamide (CAS 877242-14-3)
- Barloxavir impurity 83 (CAS 157652-27-2)
- Methyl 6-bromo-2,4-difluoro-3-methylbenzoate (CAS 2451906-45-7)
- 4-Cyano-3,5-difluorophenylboronic Acid Pinacol Ester (CAS 1003298-73-4)
- Terbinafine Impurity 13 HCl (CAS CATO-C4X-133850)
- Bortezomib Impurity 26 (CAS CATO-C4X-107226)
- Baricitinib Impurity 102 (CAS CATO-C4X-2260102)
- 2-(Phenylsulfonamido)butanoic acid (CAS 51786-16-4)
- 2-Chloro-4-(difluoromethoxy)aniline (CAS 1247745-21-6)
- (4-Chlorobenzyl)[2-(4-methoxyphenyl)ethyl]amine (CAS 423740-31-2)
- 6-Chloro-4-methyl-2-propyl-2H-pyrazolo[3,4-b]pyridine (CAS 1018048-12-8)
- Methyl 3-(3-bromo-2-oxopyrrolidin-1-yl)propanoate (CAS 1343810-32-1)
- 1-(3-Bromopropoxy)-2-tert-butylbenzene (CAS 414900-40-6)
- D-Asp15-Tirzepatide (CAS CATO-CPTD788919)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com