Cefpirome Impurity 19 CAS CATO-C4X-120719
| CAS No. | CATO-C4X-120719 |
| Molecular Formula | C26H26N8O11S2 |
| Molecular Weight | 690.66 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a process- or degradation-related impurity, Cefpirome Impurity 19 (CAS CATO-C4X-120719, C26H26N8O11S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C26H26N8O11S2, Cefpirome Impurity 19 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 690.66 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C26H26N8O11S2 |
| Molecular Weight | 690.66 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 8 |
| Sulfur Atoms | 2 |
Related Cefpirome Standards
- Cefpirome Impurity 20 (CAS CATO-C4X-120720)
- Cefpirome Impurity 21 (CAS CATO-C4X-120721)
- Cefpirome Impurity 22 (CAS CATO-C4X-120722)
- Cefpirome Impurity 6 (CAS CATO-C4X-12076)
- Cefpirome Impurity 24 (CAS CATO-C4X-120724)
- Cefpirome Impurity 29 (CAS CATO-C4X-120729)
- Cefpirome Impurity 34 (CAS CATO-C4X-120734)
- Cefpirome Impurity 35 (CAS CATO-C4X-120735)
Recommended Standards
- Ceftobiprole medocaril (CAS 376653-43-9)
- 4,4',4'',4'''-(1,4-Phenylenebis(1H-imidazole-2,4,5-triyl))tetrabenzoic acid (CAS 2594424-69-6)
- 4,4',4'',4'''-((9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(phosphanetriyl))tetrabenzaldehyde (CAS 2411643-30-4)
- Itraconazole Impurity 62 (CAS CATO-C4X-149762)
- Eldecalcitol Impurity 54 (CAS 100928-07-2)
- Sorafenib Impurity 44 (CAS CATO-C4X-112444)
- Olprinone impurity 35 (CAS 136117-77-6)
- 2H-chromene-8-carboxylic acid (CAS 1935147-76-4)
- Dalilesen Impurity 2 (CAS 1293284-55-5)
- 5-Amino-1,3-dioxoisoindolin-2-yl benzenesulfonate (CAS 91517-75-8)
- Ethyl 9-hydroxy-3-azabicyclo[3.3.1]Nonane-1-carboxylate (CAS 2117675-20-2)
- Methyl 3,4-dihydro-2H-1,2-oxazine-4-carboxylate (CAS 2137715-29-6)
- Dibenzo[d,f][1,3,2]dioxaphosphepin, 6-chloro- (CAS 16611-68-0)
- Glucagon Monohydrochloride (CAS 28270-04-4)
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