Cefoperazone Impurity N11 CAS 68779-10-2
| CAS No. | 68779-10-2 |
| Molecular Formula | C25H27N9O8S2 |
| Molecular Weight | 645.67 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Cefoperazone Impurity N11 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.
As a process- or degradation-related impurity, Cefoperazone Impurity N11 (CAS 68779-10-2, C25H27N9O8S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Cefoperazone Impurity N11 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 645.67 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C25H27N9O8S2 |
| Molecular Weight | 645.67 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 |
| Degree of Unsaturation (DBE) | 17.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 9 |
| Sulfur Atoms | 2 |
Related Cefoperazone Standards
- Cefoperazone EP Impurity B (CAS 711598-76-4)
- Cefoperazone Impurity 13 (CAS CATO-C4X-114913)
- Cefoperazone Impurity 25 (CAS CATO-C4X-114925)
- Cefoperazone Impurity 33 (CAS CATO-C4X-114933)
- Cefoperazone (CAS 62893-19-0)
- Cefoperazone EP Impurity F (CAS 1315481-36-7)
- Cefoperazone Impurity N12 (CAS 711590-76-4)
- Cefoperazone-d5 (CAS 2410425-70-4)
Recommended Standards
- PPI-2206 (CAS 1403850-91-8)
- Rosuvastatin Impurity 217 (CAS CATO-C4X-1169217)
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- Vonoprazan Impurity 267 (CAS CATO-C4X-1020267)
- Indobufen Impurity 23 (CAS CATO-C4X-179223)
- Faropenem Impurity 8 (CAS CATO-C4X-12898)
- Clindamycin Impurity 34 (CAS CATO-C4X-134134)
- n-[3-(pyrrolidin-1-yl)propyl]piperidine-4-carboxamide (CAS 92031-43-1)
- Di-tert-butyl 4-oxopyrrolidine-1,2-dicarboxylate (CAS 1098652-11-9)
- (S)-2-Amino-3-(4-ethynylphenyl)propanoic acid hydrochloride (CAS 188640-63-3)
- 2-(Methoxycarbonyl)isonicotinic Acid (CAS 24195-10-6)
- 7-(2-Cyclohexylethyl)-6-(hydroxymethyl)-7H-pyrrolo[2,3-d]pyrimidine-2-carbonitrile (CAS 1059174-71-8)
- (-)-Δ9-THC (CAS 1972-08-3)
- [Glu]17-Liraglutide (CAS CATO-C4X-199236)
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