Etizolam Impurity 29 CAS CATO-C4X-350929
| CAS No. | CATO-C4X-350929 |
| Molecular Formula | C17H15ClN4O2S |
| Molecular Weight | 374.84 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Etizolam Impurity 29 (CAS CATO-C4X-350929, C17H15ClN4O2S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Etizolam Impurity 29 (C17H15ClN4O2S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), Etizolam Impurity 29 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 | C17H15ClN4O2S |
| Molecular Weight | 374.84 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Etizolam Standards
- Etizolam Impurity 11 (CAS CATO-C4X-350911)
- Etizolam Impurity 33 (CAS CATO-C4X-350933)
- Etizolam Impurity 30 (CAS CATO-C4X-350930)
- Etizolam Impurity 16 (CAS 50508-90-2)
- Etizolam Impurity 26 (CAS CATO-C4X-350926)
- Etizolam Impurity 24 (CAS CATO-C4X-350924)
- Etizolam Impurity 25 (CAS CATO-C4X-350925)
- Etizolam Impurity 28 (CAS CATO-C4X-350928)
Recommended Standards
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- Lasmiditan Impurity 55 (CAS CATO-C4X-247855)
- Formoterol Impurity 26 (CAS 250336-08-4)
- Atrasentan Impurity 75 (CAS 1058551-12-4)
- 2-Formamido-4,4-dimethylpentanoic acid (CAS 88319-40-8)
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