Cefaclor Impurity 69 CAS CATO-C4X-127069
| CAS No. | CATO-C4X-127069 |
| Molecular Formula | C19H18N4O5S2 |
| Molecular Weight | 446.50 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Cefaclor Impurity 69 (C19H18N4O5S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 446.50 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Cefaclor Impurity 69 (CAS CATO-C4X-127069) is a certified pharmaceutical impurity reference standard with the molecular formula C19H18N4O5S2 and a molecular weight of 446.50 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.
As a certified reference material (CRM), Cefaclor Impurity 69 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.
Physical & Chemical Properties
| Molecular Formula | C19H18N4O5S2 |
| Molecular Weight | 446.50 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Related Cefaclor Standards
- Cefaclor Impurity 56 (CAS CATO-C4X-127056)
- Cefaclor Impurity 30 (CAS CATO-C4X-127030)
- Cefaclor Impurity 61 (CAS CATO-C4X-127061)
- Cefaclor Impurity 70 (CAS CATO-C4X-127070)
- Cefaclor Ethyl Ester (CAS CATO-C4X-127052)
- Cefaclor Impurity 17 (CAS CATO-C4X-127017)
- Cefaclor Impurity 35 (CAS CATO-C4X-127035)
- Cefaclor EP Impurity H (CAS CATO-C4X-12708)
Recommended Standards
- Finerenone Impurity 142 (CAS CATO-C4X-2880142)
- Olaparib Impurity 7 (CAS CATO-C4X-11357)
- Finerenone Impurity 56 (CAS CATO-C4X-288056)
- Ligagliptin impurity 105 (CAS CATO-C4X-1101105)
- Hydantoin Impurity 31 (CAS 110932-42-8)
- Baclofen Impurity 47 (CAS CATO-C4X-101247)
- Ibutilide Impurity 6 (CAS CATO-C4X-21106)
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- 6-(4-Chlorophenyl)-2-methylpyrazolo[1,5-a]pyrimidine (CAS 691884-04-5)
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- Des-Trp25-Tirzepatide (CAS CATO-CPTD788948)
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