Cefoperazone Impurity 7 CAS 24209-38-9
| CAS No. | 24209-38-9 |
| Molecular Formula | C10H12N6O3S2 |
| Molecular Weight | 328.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Cefoperazone Impurity 7 (CAS 24209-38-9) is a certified pharmaceutical impurity reference standard with the molecular formula C10H12N6O3S2 and a molecular weight of 328.37 g/mol.
The molecular framework of Cefoperazone Impurity 7 (C10H12N6O3S2) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C10H12N6O3S2 |
| Molecular Weight | 328.37 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Cefoperazone Standards
- Cefoperazone Impurity 23 (CAS CATO-C4X-114923)
- Cefoperazone Impurity 24 (CAS CATO-C4X-114924)
- Cefoperazone Impurity 35 (CAS CATO-C4X-114935)
- Cefoperazone Impurity 15 (CAS 348088-68-6)
- Cefoperazone Impurity 22 (CAS 62893-24-7)
- Cefoperazone Impurity 34 (CAS CATO-C4X-114934)
- Cefoperazone Impurity N1 (CAS 58016-87-8)
- Cefoperazone EP Impurity D (CAS 37539-03-0)
Recommended Standards
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- Sildenafil Impurity 263 (CAS CATO-C4X-1128263)
- Lansoprazole Impurity 50 (CAS 116418-99-6)
- Dorzagliatin Impurity 9 (CAS CATO-C4X-34419)
- Ilaprazole Impurity 2 (CAS 1360824-55-0)
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- Benzyl (3aS,7aR)-2-(bromomethyl)-3,3a,4,5,7,7a-hexahydro-2H-furo[2,3-c]pyridine-6-carboxylate (CAS 354155-03-6)
- (E)-N-Hydroxy-N'-(4-methyl-5-nitropyridin-2-yl)formimidamide (CAS 2230820-23-0)
- 1-(6-Nitropyridin-2-yl)ethanone (CAS 1936588-98-5)
- Ethyl 3-(3-(aminomethyl)phenyl)-2-methylpropanoate (CAS 912761-58-1)
- 4-Cyano-3-(difluoromethyl)-6-fluoropyridine-2-carbonyl chloride (CAS 1806875-69-3)
- Acetyl tetrapeptide-3 (CAS 827306-88-7)
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