Paroxetine HCl Anhydrous EP Impurity J CAS CATO-C4X-103534
| CAS No. | CATO-C4X-103534 |
| Molecular Formula | C25H24FNO3 |
| Molecular Weight | 405.46 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Paroxetine HCl Anhydrous EP Impurity J (CAS CATO-C4X-103534), a pharmacopoeial impurity reference standard (molecular formula C25H24FNO3, MW 405.46 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C25H24FNO3, Paroxetine HCl Anhydrous EP Impurity J contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 405.46 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C25H24FNO3 |
| Molecular Weight | 405.46 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Paroxetine Standards
- Paroxetine Impurity 47 (CAS 105813-40-9)
- Paroxetine Impurity 69 (CAS CATO-C4X-103569)
- Paroxetine EP impurity C (CAS 105813-14-7)
- Paroxetine Impurity 74 (CAS CATO-C4X-103574)
- Paroxetine Impurity 44 (CAS 317323-77-6)
- Paroxetine Impurity 61 (CAS CATO-C4X-103561)
- Paroxetine Impurity 40 (CAS CATO-C4X-103540)
- Paroxetine Impurity 30 (CAS 253768-88-6)
Recommended Standards
- N-[3-Fluoro-4-(4-phenylpiperazin-1-yl)phenyl]-4-methoxybenzamide (CAS 478079-63-9)
- Ezetimibe Impurity 33 (CAS 1700622-07-6)
- Dimethyl 5-(4-(tert-butyl)phenyl)-1H,3H-pyrrolo[1,2-c]thiazole-6,7-dicarboxylate 2,2-dioxide (CAS 337920-88-4)
- Moxifloxacin-d4 (CAS CATO-CCAD303853)
- Roxadustat Impurity 77 (CAS CATO-C4X-221377)
- Iobitridol Impurity 13 (CAS CATO-C4X-317813)
- Ilaprazole impurity 194 (CAS CATO-C4X-1130194)
- 1-(4-Ethoxy-3,5-diiodophenyl)ethanone (CAS 313550-43-5)
- (E)-Hex-2-enoyl chloride (CAS 97943-16-3)
- 5-Amino-N-methyl-1,3,4-thiadiazole-2-carboxamide, 97% (CAS 1177423-60-7)
- Baloxavir Marboxil Impurity 172 (CAS CATO-C4X-2108172)
- Bosutinib Impurity 3 (CAS CATO-C4X-18473)
- Etoposide Impurity 23 (CAS 101648-63-9)
- D-allo-Thr7-Semaglutide (CAS CATO-C4X-2226242)
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