Paroxetine Impurity 71 CAS CATO-C4X-103571
| CAS No. | CATO-C4X-103571 |
| Molecular Formula | C20H23NO4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Paroxetine Impurity 71 (C20H23NO4HCl) is characterized by a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Paroxetine Impurity 71 (CAS CATO-C4X-103571) is a certified pharmaceutical impurity reference standard with the molecular formula C20H23NO4HCl and a molecular weight of 377.86 g/mol.
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.
CATO manufactures Paroxetine Impurity 71 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H23NO4 HCl |
| Molecular Weight | 377.86 g/mol |
| Appearance | Pale yellow to 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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) | 9.0 |
| 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
- Nimodipine Impurity 8 (CAS CATO-C4X-13858)
- Tofacitinib Impurity 226 (CAS 2101951-13-5)
- Carbocisteine Impurity 24 2 Hydrochlorides（Enantiomeric mixture） (CAS CATO-C4X-201024)
- 3-((2-Nitrophenyl)amino)-3-phenylpropan-1-ol (CAS 1820603-74-4)
- Benzyl 4-methylidenepiperidine-1-carboxylate (CAS 138163-12-9)
- 1-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)cyclooctanecarboxylic acid (CAS 222166-38-3)
- 2,3-Diamino-N-(4-fluoro-3-(trifluoromethyl)phenyl)benzamide (CAS 1421933-30-3)
- N-(isoxazol-4-yl)-2-phenylacetamide (CAS 1389313-62-5)
- Tert-butyl 4-(2-(3-(1H-pyrazol-5-yl)phenoxy)ethyl)piperazine-1-carboxylate (CAS 1308645-70-6)
- Liraglutide Impurity 17 TFA Salt (CAS CATO-C4X-199217)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com