Sulbactam Impurity 19 CAS CATO-C4X-175619
| CAS No. | CATO-C4X-175619 |
| Molecular Formula | C21H21NO5S |
| Molecular Weight | 399.46 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 Sulbactam Impurity 19.
Sulbactam Impurity 19 (CAS CATO-C4X-175619) is a certified pharmaceutical impurity reference standard with the molecular formula C21H21NO5S and a molecular weight of 399.46 g/mol.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Sulbactam Impurity 19 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 399.46 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
As a certified reference material (CRM), Sulbactam Impurity 19 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 | C21H21NO5S |
| Molecular Weight | 399.46 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Sulbactam Standards
- Sulbactam Impurity 33 (CAS CATO-C4X-175633)
- Sulbactam EP Impurity E (CAS 76646-91-8)
- Sulbactam Impurity 13 (CAS CATO-C4X-175613)
- Sulbactam Impurity 34 (CAS CATO-C4X-175634)
- Sulbactam EP Impurity F (CAS 24158-88-1)
- Sulbactam Pivoxil (CAS 69388-79-0)
- Sulbactam Impurity 18 (CAS CATO-C4X-175618)
- Sulbactam Impurity 36 (CAS CATO-C4X-175636)
Recommended Standards
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- Cinacalcet Impurity N26 (CAS 1271930-12-1)
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