Cefotiam Impurity 53 CAS CATO-C4X-120453
| CAS No. | CATO-C4X-120453 |
| Molecular Formula | C18H25N9O5S3 |
| Molecular Weight | 543.64 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C18H25N9O5S3, Cefotiam Impurity 53 contains a flavonoid core, 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 543.64 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
As a process- or degradation-related impurity, Cefotiam Impurity 53 (CAS CATO-C4X-120453, C18H25N9O5S3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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), Cefotiam Impurity 53 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 | C18H25N9O5S3 |
| Molecular Weight | 543.64 g/mol |
| Purity | 97%+ |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 9 |
| Sulfur Atoms | 3 |
Related Cefotiam Standards
- Cefotiam Impurity 18 (CAS CATO-C4X-120418)
- Cefotiam Impurity 27 (CAS CATO-C4X-120427)
- Cefotiam Impurity 52 (CAS CATO-C4X-120452)
- Cefotiam Impurity 19 (CAS CATO-C4X-120419)
- Cefotiam Impurity 11 (CAS CATO-C4X-120411)
- Cefotiam Impurity 17 (CAS CATO-C4X-120417)
- Cefotiam Impurity 24 (CAS CATO-C4X-120424)
- delta(3)-Cefotiam (CAS 142182-63-6)
Recommended Standards
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- (3-(1-((Tert-butoxycarbonyl)amino)-2-(1-tosyl-1H-indol-3-yl)ethyl)oxetan-3-yl)glycine (CAS 2199281-10-0)
- Lurbinectedin Impurity 15 (CAS 2248127-59-3)
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- 2-Bromo-3-nitrobenzoic Acid Methyl Ester (CAS 5337-09-7)
- Tirzepatide Impurity 1 (CAS 2460751-66-8)
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