Delafloxacin impurity 36 CAS CATO-C4X-263736
| CAS No. | CATO-C4X-263736 |
| Molecular Formula | C18H14ClF3N4O5 |
| Molecular Weight | 458.78 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Delafloxacin impurity 36 (CAS CATO-C4X-263736), a pharmacopoeial impurity reference standard (molecular formula C18H14ClF3N4O5, MW 458.78 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C18H14ClF3N4O5, Delafloxacin impurity 36 contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 458.78 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Delafloxacin impurity 36 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 | C18H14ClF3N4O5 |
| Molecular Weight | 458.78 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 4 |
Related Delafloxacin Standards
- Delafloxacin Impurity 20 (CAS CATO-C4X-263720)
- Delafloxacin Impurity 30 (CAS CATO-C4X-263730)
- Delafloxacin impurity 33 (CAS 1620905-72-7)
- Delafloxacin Impurity 22 (CAS CATO-C4X-263722)
- delafloxacin Impurity 4 (CAS CATO-C4X-26374)
- Delafloxacin Impurity 24 (CAS CATO-C4X-263724)
- Delafloxacin impurity 35 (CAS CATO-C4X-263735)
- Delafloxacin (CAS 189279-58-1)
Recommended Standards
- 3-Bromomethyl-3-[6-(4-chlorophenoxyl)-hexyl]-tetrahydropyrrolo[2,1-c] [1,4]oxazine-1,4-dione (CAS 467235-26-3)
- 5-{1-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]-1H-pyrazol-3-yl}-3-(4-fluorophenyl)-2,1-benzoxazole (CAS 321571-05-5)
- N-Stearyl-N-(2-hydroxyethyl)-N',N'-bis(2-hydroxyethyl)trimethylenediamine (CAS 17671-49-7)
- 6-(4-Chlorophenyl)-4-(trifluoromethyl)-2-{[3-(trifluoromethyl)phenyl]sulfanyl}pyridine-3-carbonitrile (CAS 478049-42-2)
- Oclacitinib Impurity 41 (CAS CATO-C4X-301841)
- Methyldopa EP Impurity A (CAS 6739-31-7（free base）)
- Cytarabine Impurity 32 (CAS 84902-98-7)
- 7-O-Methylmangiferin (CAS 31002-12-7)
- Avanafil Impurity 34 (CAS 759408-08-7)
- Posaconazole Impurity 3 (CAS 2243786-02-7)
- Phenyl(5-(pyrazin-2-yl)-1H-1,2,4-triazol-3-yl)methanamine (CAS 1708370-91-5)
- Varenicline Impurity 51 (CAS CATO-C4X-196251)
- 9-Methoxy-1,2,3,4,4a,5-hexahydrobenzo[c]quinolizin-6-one (CAS 2568364-66-7)
- [2-31]-Semaglutide C (x TFA Salt) (CAS CATO-C4X-2226118)
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