Tamsulosin Impurity 22 HCl CAS 50505-66-3
| CAS No. | 50505-66-3 |
| Molecular Formula | C18H23NO |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Tamsulosin Impurity 22 HCl 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.
Tamsulosin Impurity 22 HCl (CAS 50505-66-3) is a certified pharmaceutical impurity reference standard with the molecular formula C18H23NOHCl and a molecular weight of 305.85 g/mol.
Based on its molecular formula C18H23NOHCl, Tamsulosin Impurity 22 HCl contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 305.85 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C18H23NO HCl |
| Molecular Weight | 305.85 g/mol |
| Appearance | Off-white to pale 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Tamsulosin Standards
- Tamsulosin Impurity 68 (CAS 1027854-97-2)
- Tamsulosin EP Impurity F HCl (CAS 1051368-80-9)
- Tamsulosin EP Impurity E (CAS 105764-07-6)
- (R)-Tamsulosin (CAS 106133-20-4)
- Tamsulosin EP Impurity G (CAS 106138-88-9)
- Tamsulosin Hydrochloride (CAS 106463-17-6)
- Tamsulosin EP Impurity G HCl (CAS 106463-19-8)
- Tamsulosin Impurity 59 (CAS 1073231-99-8)
Recommended Standards
- Azacitidine Impurity 11 (CAS CATO-C4X-138811)
- Bilastine impurity 84 (CAS CATO-C4X-225384)
- Salbutamol Impurity 77 (CAS 39235-57-9)
- 4-Phenyl-6-(1H-pyrrol-2-yl)-1,3,5-triazin-2(1H)-one (CAS 62460-53-1)
- 10-Undecen-1-Ol (CAS 112-43-6)
- 4-Chloro-2-ethyl-5-hydroxypyridazin-3(2H)-one (CAS 64178-60-5)
- 1-(3-Fluoro-4-methoxybenzyl)-1h-imidazole (CAS 1181875-71-7)
- 1-Isopropyl-N-phenethylpyrrolidin-3-amine (CAS 1306711-46-5)
- 2-Chlorobenzenesulfonic acid (CAS 27886-58-4)
- Galanin Message Associated Peptide (1-41) amide trifluoroacetate salt (CAS 132699-74-2)
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