Tamsulosin EP Impurity H CAS 1329611-47-3
| CAS No. | 1329611-47-3 |
| Molecular Formula | C20H27NO3 |
| Molecular Weight | 329.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Tamsulosin EP Impurity H (CAS 1329611-47-3, C20H27NO3) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Tamsulosin EP Impurity H (C20H27NO3) contains a steroid core, an amide group, 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).
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 Tamsulosin EP Impurity H 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 | C20H27NO3 |
| Molecular Weight | 329.43 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 1 |
Related Tamsulosin Standards
- Tamsulosin Impurity 29 (CAS 136383-33-0)
- Tamsulosin Impurity 47 (CAS CATO-C4X-118747)
- Tamsulosin Impurity 51 (CAS CATO-C4X-118751)
- Tamsulosin Impurity 43 (CAS CATO-C4X-118743)
- Tamsulosin Impurity 13 (CAS 35193-64-7)
- Tamsulosin Impurity 59 (CAS 1073231-99-8)
- Tamsulosin Impurity 60 (CAS 1537178-25-8)
- Tamsulosin Impurity 61 (CAS 2458209-31-7)
Recommended Standards
- 7,7-Dimethyl-2,4-diphenyl-4,6,7,8-tetrahydroquinolin-5(1H)-one (CAS 130716-55-1)
- N,N-diethyl-4-(2,4,6-trimethoxybenzyl)aniline (CAS 134627-68-2)
- 3-Methoxy-4-((7-phenoxyheptyl)oxy)aniline (CAS 110331-06-1)
- 2-Ethoxy-N-(3-hydroxy-4,4-dimethylpentyl)-1-naphthamide (CAS 1396782-63-0)
- Salbutamol Impurity 187 (CAS CATO-C4X-1176187)
- Tolvaptan Impurity 76 (CAS 2458812-63-8)
- Lasmiditan Impurity 44 (CAS CATO-C4X-247844)
- 2,2,3,4,4,5,5,6,6,7,8,8,8-Tridecafluoro-3,7-bis(trifluoromethyl)octan-1-ol (CAS 232587-50-7)
- Atropine Impurity 32 (CAS 4438-22-6)
- 1-(Pyridin-2-ylmethyl)-1H-pyrrole-2,5-dione (CAS 6331-16-4)
- (2S,3R)-3-(4-Bromophenyl)pyrrolidine-2-carboxylic acid (CAS 528607-50-3)
- 1-(8-Chloro-1-(trifluoromethyl)-[1,2,4]triazolo[4,3-a]quinoxalin-4-yl)piperidin-4-one O-benzyl oxime (CAS 400089-11-4)
- 1-(m-tolyl)hexahydropyrimidine-2,4-dione (CAS 36070-47-0)
- Semaglutide impurity 202 (CAS CATO-C4X-2226202)
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