Pitolisant impurity 23 CAS CATO-C4X-252023
| CAS No. | CATO-C4X-252023 |
| Molecular Formula | C17H24ClNO3 |
| Molecular Weight | 325.83 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Pitolisant impurity 23 (CAS CATO-C4X-252023) is a certified pharmaceutical impurity reference standard with the molecular formula C17H24ClNO3 and a molecular weight of 325.83 g/mol.
Structurally, Pitolisant impurity 23 (C17H24ClNO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 325.83 g/mol, it falls into the moderately-high-molecular-weight range. 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.
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 | C17H24ClNO3 |
| Molecular Weight | 325.83 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Pitolisant Standards
- Pitolisant impurity 26 (CAS CATO-C4X-252026)
- Pitolisant Impurity 1 (CAS CATO-C4X-25201)
- Pitolisant impurity 29 (CAS CATO-C4X-252029)
- Pitolisant Impurity 46 (CAS CATO-C4X-252046)
- 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)
Recommended Standards
- tert-Butyl 4-(5-chloro-2-methoxyphenyl)piperidine-1-carboxylate (CAS 897666-33-0)
- 2-(4-Chlorophenyl)-3-(piperidin-1-ylmethyl)imidazo[1,2-a]pyridine (CAS 861208-75-5)
- tert-Butyl 4-((4-chlorophenyl)(hydroxy)methyl)piperidine-1-carboxylate (CAS 639468-65-8)
- 4-[4-[(2-Chlorophenyl)methyl]-1-piperazinyl]-1H-indole (CAS 334974-31-1)
- Peramivir Impurity 88 (CAS CATO-C4X-183388)
- Empagliflozin Impurity 310 (CAS CATO-C4X-1065310)
- Itopride Impurity 23 (CAS CATO-C4X-137723)
- Methyl 1,3-dimethyl-1H-thieno[2,3-c]pyrazole-5-carboxylate (CAS 675819-58-6)
- 2-(Furan-2-yl)cyclobutan-1-ol (CAS 84099-57-0)
- 4-(N-Hydroxycarbamimidoyl)-benzoic acid methyl ester (CAS 184778-33-4)
- 1-(Pyrazin-2-yl)-1H-pyrrole-2-carbaldehyde (CAS 104149-46-4)
- 7-Fluoro-2-methoxyquinoline-8-carbaldehyde (CAS 1072793-92-0)
- 2-Carboethoxy-3-(2,5-dimethylphenyl)propiophenone (CAS 898794-92-8)
- Tirzepatide Impurity 34 (CAS CATO-C4X-324034)
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