Cefoperazone Impurity 15 CAS 348088-68-6
| CAS No. | 348088-68-6 |
| Molecular Formula | C15H17N3O6 |
| Molecular Weight | 335.31 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Cefoperazone Impurity 15 (C15H17N3O6) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 335.31 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Cefoperazone Impurity 15 (CAS 348088-68-6) is a certified pharmaceutical impurity reference standard with the molecular formula C15H17N3O6 and a molecular weight of 335.31 g/mol.
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.
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 | C15H17N3O6 |
| Molecular Weight | 335.31 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
Related Cefoperazone Standards
- Cefoperazone Impurity 22 (CAS 62893-24-7)
- Cefoperazone Impurity 34 (CAS CATO-C4X-114934)
- Cefoperazone Impurity 23 (CAS CATO-C4X-114923)
- Cefoperazone Impurity 24 (CAS CATO-C4X-114924)
- Cefoperazone Impurity 35 (CAS CATO-C4X-114935)
- Cefoperazone Impurity 7 (CAS 24209-38-9)
- Cefoperazone Impurity 63 (CAS CATO-C4X-114963)
- Cefoperazone Impurity 28 (CAS CATO-C4X-114928)
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- tert-Butyl 4-(5-bromothiazol-2-yl)piperidine-1-carboxylate (CAS 951259-16-8)
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