Dapoxetine Impurity 50 CAS CATO-C4X-143950
| CAS No. | CATO-C4X-143950 |
| Molecular Formula | C21H23NO2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Dapoxetine Impurity 50 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 357.88 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO supplies Dapoxetine Impurity 50 (CAS CATO-C4X-143950), a pharmacopoeial impurity reference standard (molecular formula C21H23NO2HCl, MW 357.88 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Dapoxetine Impurity 50 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C21H23NO2 HCl |
| Molecular Weight | 357.88 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Dapoxetine Standards
- Dapoxetine Impurity 74 (CAS 100306-33-0)
- Dapoxetine Impurity 37 (CAS 100306-34-1)
- Dapoxetine Impurity 23 (CAS 102-93-2)
- Dapoxetine Impurity 86 (CAS 103548-16-9)
- rac-Dapoxetine HCL (CAS 1071929-03-7)
- Dapoxetine Impurity 34 (CAS 1083-30-3)
- Dapoxetine Impurity 18 (CAS 1091626-77-5)
- Dapoxetine-d7 HCl (CAS 1132642-56-8(free base))
Recommended Standards
- Linezolid Impurity 18 (CAS 212325-40-1)
- Posaconazole Impurity 83 (CAS CATO-C4X-120883)
- Perindopril Impurity 31 (CAS CATO-C4X-125231)
- 3-(2,5,6-Trimethyl-3-oxo-2,3-dihydropyridazine-4-carbonyl)-1,3-thiazolidine-4-carboxylic acid (CAS 1218015-86-1)
- 8-Fluoroquinoline-4-carboxylic acid (CAS 215801-73-3)
- (2R,3S,4S,5R)-2,3,4,5-tetrahydroxy-6-oxohexanoic acid (CAS 2073-35-0)
- 2-(6-Chloropyridazin-3-yl)phenol (CAS 77585-94-5)
- N-(3,5-dichlorophenyl)-2-((5-phenyl-1,3,4-oxadiazol-2-yl)thio)acetamide (CAS 333777-98-3)
- 2-(4-Fluorophenyl)-2H,4H-chromeno[4,3-c]pyrazole (CAS 866051-36-7)
- Semaglutide Impurity 3 (CAS CATO-C4X-22263)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com