Cefditoren Impurity 67 CAS CATO-C4X-135867
| CAS No. | CATO-C4X-135867 |
| Molecular Formula | C50H56N12O14S6 |
| Molecular Weight | 1241.44 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.
Cefditoren Impurity 67 (CAS CATO-C4X-135867) is a certified pharmaceutical impurity reference standard with the molecular formula C50H56N12O14S6 and a molecular weight of 1241.44 g/mol.
The molecular framework of Cefditoren Impurity 67 (C50H56N12O14S6) 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 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 | C50H56N12O14S6 |
| Molecular Weight | 1241.44 g/mol |
| Purity | ≥95% |
| 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) | 29.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 12 |
| Sulfur Atoms | 6 |
Related Cefditoren Standards
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- Cefditoren Impurity 14 (CAS CATO-C4X-135814)
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