Pitolisant impurity 29 CAS CATO-C4X-252029
| CAS No. | CATO-C4X-252029 |
| Molecular Formula | C18H20Cl2O |
| Molecular Weight | 323.26 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 process- or degradation-related impurity, Pitolisant impurity 29 (CAS CATO-C4X-252029, C18H20Cl2O) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C18H20Cl2O, Pitolisant impurity 29 contains a steroid core, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 323.26 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), Pitolisant 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 | C18H20Cl2O |
| Molecular Weight | 323.26 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Pitolisant Standards
- Pitolisant impurity 26 (CAS CATO-C4X-252026)
- Pitolisant impurity 23 (CAS CATO-C4X-252023)
- Pitolisant Impurity 1 (CAS CATO-C4X-25201)
- Pitolisant impurity 3 (CAS CATO-C4X-25203)
- Pitolisant impurity 37 (CAS CATO-C4X-252037)
- Pitolisant impurity 40 (CAS CATO-C4X-252040)
- Pitolisant impurity 5 (CAS CATO-C4X-25205)
- Pitolisant impurity 38 (CAS CATO-C4X-252038)
Recommended Standards
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- 4,4'-Methylenebis(3-chloro-N,N-dimethylaniline) (CAS 5428-29-5)
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- Orforglipron impurity 21 (CAS CATO-C4X-323421)
- Baloxavir Marboxil Impurity 242 (CAS CATO-C4X-2108242)
- Loxoprofen Impurity 82 (CAS CATO-C4X-148882)
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- 1-(2-Methoxyacetyl)-2-piperidinecarboxylic acid 1101744-04-0 8697AC C9H15NO4 (CAS 1101744-04-0)
- 6-Bromo-2,3-dihydrobenzo[d]isothiazole 1,1-dioxide (CAS 1341040-15-0)
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