Sitafloxacin Impurity 31 CAS CATO-C4X-115531
| CAS No. | CATO-C4X-115531 |
| Molecular Formula | C38H35Cl2F3N6O6 |
| Molecular Weight | 799.62 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.
Sitafloxacin Impurity 31 (CAS CATO-C4X-115531) is a certified pharmaceutical impurity reference standard with the molecular formula C38H35Cl2F3N6O6 and a molecular weight of 799.62 g/mol.
The molecular framework of Sitafloxacin Impurity 31 (C38H35Cl2F3N6O6) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine/chlorine 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. 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), Sitafloxacin Impurity 31 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 | C38H35Cl2F3N6O6 |
| Molecular Weight | 799.62 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) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 6 |
Related Sitafloxacin Standards
- Sitafloxacin impurity 48 (CAS CATO-C4X-111548)
- Sitafloxacin impurity 91 (CAS CATO-C4X-115591)
- Sitafloxacin Impurity 83 (CAS CATO-C4X-115583)
- Sitafloxacin impurity 76 (CAS CATO-C4X-115576)
- Sitafloxacin impurity 73 (CAS CATO-C4X-115573)
- Sitafloxacin Impurity 23 (CAS 147782-16-9)
- Sitafloxacin impurity 88 (CAS CATO-C4X-115588)
- Sitafloxacin impurity 71 (CAS CATO-C4X-115571)
Recommended Standards
- Sorafenib Impurity 44 (CAS CATO-C4X-112444)
- Tris(2,4-Dibromo-phenyl)phosphate (CAS 49690-63-3)
- Dicloxacillin Impurity 1 (CAS 934986-85-3)
- 2-Ethylhexyl 14-Ethyl-6,6-dioctyl-4,8,11-trioxo-5,7,12-trioxa-6-stannaoctadeca-2,9-dienoate (CAS 10039-33-5)
- Sorafenib Impurity 48 (CAS 5470-22-4)
- Trimetazidine Impurity 21 (CAS 69471-05-2)
- Benzbromarone Impurity 20 (CAS 2514676-29-8)
- tert-Butyl 3-bromo-2-cyano-5,6-dihydroimidazo[1,2-a]pyrazine-7(8H)-carboxylate (CAS 2768385-71-1)
- 1-Cyclohexyl-5-fluorobenzimidazole (CAS 1375068-87-3)
- 4-Methyl-2-(4h-1,2,4-triazol-3-yl)pyrimidine-5-carboxylic acid (CAS 1247418-14-9)
- Methyl 2-amino-3,4-dimethoxybenzoate (CAS 79025-27-7)
- 3-Fluoro-5-(pyrrolidino)phenylboronic acid pinacol ester (CAS 1415928-84-5)
- Ethyl 6-hydroxyquinoline-4-carboxylate (CAS 31610-09-0)
- Semaglutide impurity 48 (CAS CATO-C4X-222648)
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