Dapoxetine Impurity 57 CAS 126113-24-4
| CAS No. | 126113-24-4 |
| Molecular Formula | C19H16O2 |
| Molecular Weight | 276.33 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Dapoxetine Impurity 57 (CAS 126113-24-4) is a certified pharmaceutical impurity reference standard with the molecular formula C19H16O2 and a molecular weight of 276.33 g/mol.
Dapoxetine Impurity 57 (C19H16O2) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO manufactures Dapoxetine Impurity 57 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 | C19H16O2 |
| Molecular Weight | 276.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
Related Dapoxetine Standards
- Dapoxetine Impurity 17 (CAS 41198-42-9)
- Dapoxetine Impurity 4 (CAS 119357-34-5)
- Dapoxetine Impurity 5 (CAS 1329834-62-9)
- Dapoxetine Impurity 6 (CAS 147199-40-4)
- Dapoxetine Impurity 10 (CAS 908291-72-5)
- Dapoxetine Impurity 19 (CAS 156453-53-1)
- Dapoxetine Impurity 20 (CAS 156453-50-8)
- Dapoxetine Impurity 89 (CAS CATO-C4X-143989)
Recommended Standards
- Desvenlafaxine Impurity 3 (CAS CATO-C4X-16103)
- N-Nitroso Azelastine EP Impurity B (CAS CATO-C4X-139641)
- Procaterol Impurity 12 (CAS CATO-C4X-181012)
- Avibactam Impurity 49 (CAS CATO-C4X-134849)
- Tiopronin Impurity 6 (CAS 6182-96-3)
- Dotinurad Impurity 193 (CAS CATO-C4X-2494193)
- Fosaprepitant impurity 56（S,S,S） (CAS CATO-C4X-116856)
- 2-(2,5-Dimethylphenoxy)propanoic acid (CAS 18996-04-8)
- Acetylcysteine Impurity 29 (CAS CATO-C4X-153229)
- 4-Chloro-6-(methoxymethyl)-2-(m-tolyl)pyrimidine (CAS 438249-83-3)
- (S)-3,3-Difluoro-2-methylazetidine (CAS 2231663-50-4)
- 2-(chloromethyl)-3-(difluoromethyl)-6-methoxy-pyridine (CAS 1805322-64-8)
- N-(3-Amino-2-methylphenyl)-2-(4-chlorophenoxy)-acetamide (CAS 953734-47-9)
- Semaglutide impurity 27 (CAS CATO-C4X-222627)
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