Paroxetine Impurity 26 CAS 324023-99-6
| CAS No. | 324023-99-6 |
| Molecular Formula | C20H23NO3 |
| Molecular Weight | 325.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Paroxetine Impurity 26 (CAS 324023-99-6, C20H23NO3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Paroxetine Impurity 26 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 325.40 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
CATO manufactures Paroxetine Impurity 26 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 | C20H23NO3 |
| Molecular Weight | 325.40 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 1 |
Related Paroxetine Standards
- Paroxetine Impurity 70 (CAS 1396174-70-1)
- Paroxetine (CAS 61869-08-7)
- Paroxetine 3-Hydroxy Metabolite (CAS 112058-89-6)
- Paroxetine 4-Hydroxy Metabolite (CAS 112058-90-9)
- Paroxetine Impurity N29 (CAS 324024-00-2)
- Paroxetine Impurity 27 (CAS 2575750-19-3)
- Paroxetine Impurity 28 (CAS CATO-C4X-103528)
- Paroxetine Related Compound F (CAS 110429-36-2)
Recommended Standards
- 202861-97-0 Carbamic acid, [(1S)-2-oxo-2-phenyl-1-(phenylmethyl)ethyl]-, 1,1-dimethylethyl ester (9CI) (CAS 202861-97-0)
- Saxagliptin Impurity 40 (CAS 361442-00-4)
- Xanthene-9-carboxylic Acid 2-(Diethylamino)ethyl Ester (CAS 24539-72-8)
- Saxagliptin Impurity 6 (CAS 1334321-39-9)
- Ketoprofen Impurity 33 (CAS 139093-77-9)
- Testosterone Impurity 38 (CAS CATO-C4X-243238)
- Phenylephrine Impurity 100 (CAS 1026633-55-5)
- 2-(4-Isopropylphenyl)cyclohexan-1-ol (CAS 197704-79-3)
- Enasidenib (CAS 1446502-11-9)
- Ethyl 2-bromo-4-(4-methoxybenzyl)thiazole-5-carboxylate (CAS 1206908-02-2)
- 2-(Phenylthio)anthracene-9,10-dione (CAS 13354-40-0)
- 1-(3-Fluorocyclobutyl)-N-methylmethanamine (CAS 1782145-31-6)
- (2R,3S)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-2H-1benzopyran-3,7-diolDISCONTINUED (CAS 490-49-3)
- D-Pro31-Tirzepatide (CAS CATO-CPTD788905)
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