Moxifloxacin Impurity 166 CAS CATO-C4X-1074166
| CAS No. | CATO-C4X-1074166 |
| Molecular Formula | C21H24N4O5 |
| Molecular Weight | 412.44 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Moxifloxacin Impurity 166 (CAS CATO-C4X-1074166), a pharmacopoeial impurity reference standard (molecular formula C21H24N4O5, MW 412.44 g/mol) used for the identification and quantification of trace impurities in APIs.
Moxifloxacin Impurity 166 (C21H24N4O5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), Moxifloxacin Impurity 166 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 | C21H24N4O5 |
| Molecular Weight | 412.44 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
Related Moxifloxacin Standards
- Moxifloxacin Hydrochloride EP Impurity B (CAS 1246911-63-6)
- Moxifloxacin EP Impurity B (CAS 1029364-73-5)
- Moxifloxacin impurity 185 (CAS CATO-C4X-1074185)
- Moxifloxacin Impurity 192 (CAS CATO-C4X-1074192)
- Moxifloxacin Impurity 193 (CAS CATO-C4X-1074193)
- Moxifloxacin impurity 195 (CAS 1620445-17-1)
- Moxifloxacin Impurity 29 (CAS 1395056-41-3)
- Moxifloxacin EP Impurity H (CAS 721970-35-0)
Recommended Standards
- Valsartan Impurity 129 (CAS CATO-C4X-1057129)
- Azilsartan Impurity 101 (CAS 1857365-17-3)
- Propane-2,2-diylbis(diphenylphosphane) (CAS 57585-26-9)
- Azilsartan Impurity 181 (CAS CATO-C4X-1096181)
- Lemborexant Impurity 86 (CAS CATO-C4X-304286)
- Piracetam Impurity 50 (CAS CATO-C4X-123550)
- Cefpodoxime Impurity 63 (CAS CATO-C4X-157963)
- 6-Methoxy-3-(4-piperidinyl)-1,2-benzisoxazole Hydrobromide (CAS 84163-17-7)
- 12-Methylbenz[a]anthracene-d14 (CAS 1794980-29-2)
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- Benzene, ethenylmethyl-, homopolymer (CAS 9017-21-4)
- tert-Butyl 2-(((6-bromopyridin-2-yl)oxy)methyl)pyrrolidine-1-carboxylate (CAS 1261231-92-8)
- 6-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-2-((3-oxobutan-2-yl)thio)-4-(trifluoromethyl)nicotinonitrile (CAS 625376-57-0)
- β-Bag Cell Peptide (Aplysia californica) (CAS 109024-47-7)
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