Cefminox Impurity 41 CAS CATO-C4X-192641
| CAS No. | CATO-C4X-192641 |
| Molecular Formula | C16H23N7O8S3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Cefminox Impurity 41 is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Cefminox Impurity 41 (CAS CATO-C4X-192641) is a certified pharmaceutical impurity reference standard with the molecular formula C16H23N7O8S3C2HF3O2 and a molecular weight of 651.60 g/mol.
Cefminox Impurity 41 (C16H23N7O8S3C2HF3O2) contains a flavonoid core, 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C16H23N7O8S3 C2HF3O2 |
| Molecular Weight | 651.60 g/mol |
| Purity | >95% |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 3 |
Related Cefminox Standards
- Cefminox Sodium Heptahydrate (CAS 1351813-81-4)
- Cefminox Impurity 14 (CAS 51138-06-8)
- Cefminox Sodium Impurity 20 (CAS 57617-09-1)
- Cefminox Impurity 23 (CAS 74228-11-8)
- Cefminox Impurity 27 (CAS 75498-97-4)
- Cefminox (CAS 84305-41-9)
- Cefminox Sodium 7Hydrate (CAS 92636-39-0)
- Cefminox Sodium Impurity 10 (CAS CATO-C4X-192610)
Recommended Standards
- Allisartan Isoproxil Impurity 15 (CAS 905456-95-3)
- Relugolix Impurity 172 (CAS CATO-C4X-2429172)
- Pinaverium Impurity 6 (CAS 53330-19-1)
- (3E)-3-[(4-methoxyphenyl)methylidene]pyrrolidin-2-one (CAS 154617-54-6)
- N-(3-Bromophenyl)-2-(1,1-dioxidothiomorpholino)-3-(1H-indol-3-yl)propanamide (CAS 478040-57-2)
- 4-Bromoquinolin-2-one (CAS 938-39-6)
- tert-Butyl oxazol-4-ylcarbamate (CAS 1314931-66-2)
- 2-hydrazinobenzoic acid (CAS 5326-27-2)
- 1-(Pyrimidin-2-ylmethyl)-1h-1,2,3-triazol-4-amine (CAS 1537028-04-8)
- D-Trp25-Tirzepatide (CAS CATO-CPTD788909)
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