Paroxetine Impurity 9 （and enantiomer） CAS CATO-C4X-10359
| CAS No. | CATO-C4X-10359 |
| Molecular Formula | 2*C14H21NO2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 271.79 g/mol gives Paroxetine Impurity 9 （and enantiomer） distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Paroxetine Impurity 9 （and enantiomer） (CAS CATO-C4X-10359) is a certified pharmaceutical impurity reference standard with the molecular formula C14H21NO2HCl and a molecular weight of 271.79 g/mol.
Structurally, Paroxetine Impurity 9 （and enantiomer） (C14H21NO2HCl) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 271.79 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), Paroxetine Impurity 9 （and enantiomer） 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 | 2*C14H21NO2 HCl |
| Molecular Weight | 271.79 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 tightly closed to prevent evaporation |
| 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Paroxetine Standards
- Paroxetine Impurity 62 (CAS 100332-12-5)
- Paroxetine Impurity 43 (CAS 100332-20-5)
- Paroxetine EP Impurity G HCl (CAS 1012886-75-7)
- Paroxetine Impurity 24 (CAS 105812-81-5)
- Paroxetine EP impurity C (CAS 105813-14-7)
- Paroxetine HCl EP Impurity C (CAS 105813-14-7(free base))
- Paroxetine EP Impurity F HCl (CAS 105813-39-6)
- Paroxetine Impurity 47 (CAS 105813-40-9)
Recommended Standards
- Neticonazole Impurity 3 (CAS 10383-49-0)
- Vortioxetine Impurity 29 (CAS 609-60-9)
- Ruxolitinib Impurity 72 (CAS 3029006-61-6)
- Eltrombopag Impurity 30 (CAS CATO-C4X-119830)
- 4-(5-(2,3-Dimethoxyphenyl)-3-phenyl-4,5-dihydro-1H-pyrazol-1-yl)-4-oxobutanoic acid (CAS 377761-78-9)
- [2-(2,4-difluorophenyl)propyl](methyl)amine (CAS 1368462-69-4)
- 2-(Methoxymethyl)-3-methylbutane-1-sulfonyl chloride (CAS 1489462-91-0)
- Tris(2,4-Ditert-Butylphenyl) Phosphite (CAS 31570-04-4)
- 2-Methyl-3-(3-methyl-1h-pyrazol-1-yl)propanoic acid (CAS 371212-60-1)
- Peptide YY (3-36) (canine, mouse, porcine, rat) trifluoroacetate salt (CAS 126339-09-1)
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