Paroxetine Impurity 23 CAS CATO-C4X-103523
| CAS No. | CATO-C4X-103523 |
| Molecular Formula | C15H23NO2 |
| Molecular Weight | 249.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Paroxetine Impurity 23 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.
As a process- or degradation-related impurity, Paroxetine Impurity 23 (CAS CATO-C4X-103523, C15H23NO2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Paroxetine Impurity 23 (C15H23NO2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 249.35 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C15H23NO2 |
| Molecular Weight | 249.35 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Paroxetine Standards
- Paroxetine Impurity 66 (CAS 2512204-89-4)
- Paroxetine Impurity 22 (CAS 127017-78-1)
- Paroxetine Impurity 19 (CAS 318279-38-8)
- Paroxetine impurity 20 (CAS 389573-45-9)
- Paroxetine Impurity 24 (CAS 105812-81-5)
- Paroxetine Impurity 43 (CAS 100332-20-5)
- Paroxetine Impurity 53 (CAS 109887-53-8)
- Paroxetine Impurity 62 (CAS 100332-12-5)
Recommended Standards
- (5E)-5-(2,4-Dimethylbenzylidene)-2-mercapto-1,3-thiazol-4(5H)-one 4176AE 4818-22-8 C12H11NOS2 (CAS 4818-22-8)
- 4613-53-0 6-Amino-2-phenyl-4H-1-benzopyran-4-one DTXSID00584330 (CAS 4613-53-0)
- Bazedoxifene Acetate Impurity 1 (CAS 223251-16-9)
- Venlafaxine EP Impurity C (CAS 93413-77-5)
- Tazobactam Impurity 30 (CAS CATO-C4X-120530)
- Neostigmine Impurity 49 (CAS CATO-C4X-204249)
- Cyclosporin Impurity 12 (CAS 89270-28-0)
- 4,9-Dimethyl-3a,4,4a,7a,8,8a-hexahydro-1H,3H-4,8-ethenobenzo[1,2-c:4,5-c']difuran-1,3,5,7-tetraone (CAS 32251-35-7)
- 2-(2-methylpropyl)-1,3-thiazole-4-carboxylic acid (CAS 386730-36-5)
- 4,8-Dimethyl-1,4,9-triazaspiro[5.5]Undecan-5-one dihydrochloride (CAS 2387594-74-1)
- 2-((4-Chlorophenyl)sulfonyl)-3-((3-fluorophenyl)amino)prop-2-enenitrile (CAS 882255-74-5)
- 1-(3-(Trifluoromethyl)phenyl)pyrrolidine-3-carboxylic acid (CAS 1086375-01-0)
- 2-(2-Hydroxyethyl)-1-piperidinecarboxaldehyde (CAS 84681-79-8)
- Semaglutide Impurity 138 (CAS CATO-C4X-2226138)
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