Paroxetine EP Impurity D CAS CATO-C4X-10354
| CAS No. | CATO-C4X-10354 |
| Molecular Formula | C19H20FNO3 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Paroxetine EP Impurity D.
Paroxetine EP Impurity D (CAS CATO-C4X-10354) is a certified pharmaceutical impurity reference standard with the molecular formula C19H20FNO3CH4O3S and a molecular weight of 425.47 g/mol.
Paroxetine EP Impurity D (C19H20FNO3CH4O3S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
CATO manufactures Paroxetine EP Impurity D 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 | C19H20FNO3 CH4O3S |
| Molecular Weight | 425.47 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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 | F-containing |
| Nitrogen Atoms | 1 |
| Sulfur 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
- Edoxaban Impurity 65 (CAS 2770688-74-7)
- Dobutamine Impurity 50 (CAS CATO-C4X-129850)
- Promethazine lmpurity 32 (CAS CATO-C4X-141832)
- 3-[Hydroxy(phenyl)methyl]isoxazole-4-carboxylic Acid (CAS 2006277-34-3)
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- Amikacin hydrate (CAS 1257517-67-1)
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- 3-(4-Chlorophenyl)-3-methylbutan-1-ol (CAS 1509751-84-1)
- 5-(Bromomethyl)-2,3-dimethylpyrazine (CAS 1339947-51-1)
- Tirzepatide Impurity 50 (CAS CATO-C4X-324050)
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