Cefoperazone Impurity 16 CAS 67275-31-4
| CAS No. | 67275-31-4 |
| Molecular Formula | C25H27N9O9S2 |
| Molecular Weight | 661.67 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.
As a process- or degradation-related impurity, Cefoperazone Impurity 16 (CAS 67275-31-4, C25H27N9O9S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Cefoperazone Impurity 16 (C25H27N9O9S2) is characterized by a flavonoid core, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Cefoperazone Impurity 16 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C25H27N9O9S2 |
| Molecular Weight | 661.67 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 Impurity 14 (CAS CATO-C4X-114914)
- Cefoperazone Impurity 51 (CAS 73240-07-0)
- Cefoperazone Impurity 55 (CAS CATO-C4X-114955)
- Cefoperazone-d5 (CAS 2410425-70-4)
- 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)
Recommended Standards
- N-(6-(4-((2-(4-(Benzo[d][1,3]dioxol-5-ylmethyl)piperazin-1-yl)-2-oxoethyl)(methyl)amino)-2-methylphenoxy)pyridin-3-yl)-4-(trifluoromethyl)benzamide (CAS 875686-91-2)
- Fluoresceinyl Gabazine Bromide (CAS 1024389-03-4)
- Phosphoramidite Impurity 29 (CAS 102987-83-7)
- Lusutrombopag Impurity 16 (CAS CATO-C4X-208416)
- Pazufloxacin Impurity 24 (CAS CATO-C4X-233224)
- Citalopram Impurity 16 (CAS 762266-07-9)
- Aprepitant Impurity 42 (CAS 13657-16-4)
- Phloroglucinol Impurity 21 (CAS 106120-04-1)
- methyl imidazo[1,5-a]pyridine-8-carboxylate (CAS 151509-02-3)
- 1-(3-Methylbenzyl)azetidine-3-carboxylic acid (CAS 1339921-84-4)
- 2-(Aminomethyl)-3-(difluoromethyl)-5-hydroxypyridine-6-methanol (CAS 1807005-76-0)
- 5-Bromo-N-(piperidin-1-yl)pyridin-2-amine (CAS 1549646-11-8)
- tert-butyl 2,4-dimethylbenzenesulfonate (CAS CATO-C3D-262152)
- Des-[Oct-γ-Glu-AEEA-AEEA]-Semaglutide (CAS CATO-C4X-2226112)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com