Flomoxef Impurity 33 CAS CATO-C4X-138233
| CAS No. | CATO-C4X-138233 |
| Molecular Formula | C27H30F4N8O13S3 |
| Molecular Weight | 846.76 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Flomoxef Impurity 33.
Flomoxef Impurity 33 (CAS CATO-C4X-138233) is a certified pharmaceutical impurity reference standard with the molecular formula C27H30F4N8O13S3 and a molecular weight of 846.76 g/mol.
Flomoxef Impurity 33 (C27H30F4N8O13S3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Flomoxef Impurity 33 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 | C27H30F4N8O13S3 |
| Molecular Weight | 846.76 g/mol |
| Purity | >90% |
| 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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 8 |
| Sulfur Atoms | 3 |
Related Flomoxef Standards
- Flomoxef Impurity 60 (CAS CATO-C4X-138260)
- Flomoxef Impurity 64 (CAS 2095482-92-9)
- Flomoxef Impurity 55 (CAS CATO-C4X-138255)
- Flomoxef Impurity 66 (CAS CATO-C4X-138266)
- Flomoxef Impurity 44 (CAS CATO-C4X-138244)
- Flomoxef Impurity 46 (CAS CATO-C4X-138246)
- Flomoxef Impurity 34 (CAS CATO-C4X-138234)
- Flomoxef Impurity 35 (CAS CATO-C4X-138235)
Recommended Standards
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- Telmisartan Impurity 64 (CAS CATO-C4X-135964)
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