Dicloxacillin Impurity 5 CAS CATO-C4X-16155
| CAS No. | CATO-C4X-16155 |
| Molecular Formula | C38H34Cl4N6O10S2 |
| Molecular Weight | 940.65 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Dicloxacillin Impurity 5.
As a process- or degradation-related impurity, Dicloxacillin Impurity 5 (CAS CATO-C4X-16155, C38H34Cl4N6O10S2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, Dicloxacillin Impurity 5 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 940.65 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
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 | C38H34Cl4N6O10S2 |
| Molecular Weight | 940.65 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 23.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Dicloxacillin Standards
- Dicloxacillin Impurity 1 (CAS 934986-85-3)
- Dicloxacillin impurity 2 (CAS CATO-C4X-16152)
- Dicloxacillin Impurity 6 (CAS CATO-C4X-16156)
- Dicloxacillin Impurity 3 (CAS CATO-C4X-16153)
- Dicloxacillin Impurity 8 (CAS CATO-C4X-16158)
- Dicloxacillin Impurity C34 (CAS 42947-69-3)
- Dicloxacillin EP Impurity A (CAS CATO-C4X-16151)
- Dicloxacillin Impurity 7 (CAS CATO-C4X-16157)
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- 2-Isopropylnicotinaldehyde (CAS 871583-24-3)
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- Ertapenem Impurity 51 (CAS CATO-C4X-163351)
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