Tamsulosin EP Impurity D CAS 1799280-05-9
| CAS No. | 1799280-05-9 |
| Molecular Formula | C19H26N2O5S |
| Molecular Weight | 394.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Tamsulosin EP Impurity D (CAS 1799280-05-9), a pharmacopoeial impurity reference standard (molecular formula C19H26N2O5S, MW 394.49 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Tamsulosin EP Impurity D (C19H26N2O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 394.49 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 D 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 | C19H26N2O5S |
| Molecular Weight | 394.49 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Tamsulosin Standards
- rac-Tamsulosin EP Impurity D (CAS 94666-11-2)
- (R)-Tamsulosin (CAS 106133-20-4)
- (+-)-Tamsulosin (CAS 94666-07-6)
- Tamsulosin EP Impurity G (CAS 106138-88-9)
- Tamsulosin Sulfonic Acid (CAS 890708-67-5)
- Tamsulosin D4 (CAS 1231943-97-7)
- Tamsulosin EP Impurity C (CAS 2244986-82-9)
- Tamsulosin Impurity 79 (CAS CATO-C4X-118779)
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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