Moxifloxacin impurity 167 CAS CATO-C4X-1074167
| CAS No. | CATO-C4X-1074167 |
| Molecular Formula | C21H19FN2O4 |
| Molecular Weight | 382.38 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Moxifloxacin impurity 167 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.
As a process- or degradation-related impurity, Moxifloxacin impurity 167 (CAS CATO-C4X-1074167, C21H19FN2O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Moxifloxacin impurity 167 (C21H19FN2O4) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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).
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 | C21H19FN2O4 |
| Molecular Weight | 382.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
Related Moxifloxacin Standards
- Moxifloxacin Impurity 20 (CAS 959347-97-8)
- Moxifloxacin Impurity 57 (CAS CATO-C4X-1074157)
- Moxifloxacin impurity 177 (CAS 1293488-61-5)
- Moxifloxacin impurity 178 (CAS 934841-13-1)
- Moxifloxacin EP Impurity E (CAS 721970-36-1)
- Moxifloxacin EP Impurity A (CAS 151213-15-9)
- Moxifloxacin Impurity 196 (CAS CATO-C4X-1074196)
- Moxifloxacin Impurity 56 (CAS CATO-C4X-1074156)
Recommended Standards
- Ibrutinib Impurity 83 (CAS CATO-C4X-106483)
- Utatrectinib (CAS 1079274-94-4)
- Ibrutinib Impurity 197 (CAS CATO-C4X-1064197)
- 1-[2-(4-Fluoro-phenyl)-acetyl]-azetidine-3-carboxylic acid(2-oxo-2,3-dihydro-1H-benzoimidazol-5-ylmethyl)-amide (CAS 1361113-81-6)
- Lifitegrast Impurity 125 (CAS CATO-C4X-2409125)
- Penehyclidine Impurity 17 (CAS CATO-C4X-130417)
- Paxlovid Impurity 4 (CAS CATO-C4X-25024)
- 1-bromo-3,3-dimethylbutane (CAS 1647-23-0)
- Ethyl N-Methylcarbamate (CAS 105-40-8)
- 2-Acetoxyphenylboronic Acid Pinacol Ester (CAS 480424-68-8)
- 5-Fluoro-3-methylpicolinaldehyde (CAS 780801-57-2)
- 4-(2-Methoxyethyl)-4h-1,2,4-triazole-3-thiol (CAS 76457-78-8)
- N-((3-Isopropyl-1,2,4-oxadiazol-5-yl)methyl)ethanamine hydrochloride (CAS 1609395-60-9)
- Neuropeptide Y (18-36) (CAS 114495-97-5)
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