Tamsulosin impurity 55 CAS 2892260-31-8
| CAS No. | 2892260-31-8 |
| Molecular Formula | C20H27N3O6S |
| Molecular Weight | 437.51 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Tamsulosin impurity 55 (C20H27N3O6S) 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 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 437.51 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Tamsulosin impurity 55 (CAS 2892260-31-8), a pharmacopoeial impurity reference standard (molecular formula C20H27N3O6S, MW 437.51 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.
CATO manufactures Tamsulosin impurity 55 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 | C20H27N3O6S |
| Molecular Weight | 437.51 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Tamsulosin Standards
- Tamsulosin impurity 57 (CAS CATO-C4X-118757)
- Tamsulosin Impurity 74 (CAS CATO-C4X-118774)
- Tamsulosin Impurity 13 (CAS CATO-C4X-118713)
- Tamsulosin D4 (CAS 1231943-97-7)
- Tamsulosin Sulfonic Acid (CAS 890708-67-5)
- (R)-Tamsulosin (CAS 106133-20-4)
- (+-)-Tamsulosin (CAS 94666-07-6)
- Tamsulosin EP Impurity G (CAS 106138-88-9)
Recommended Standards
- Edoxaban Impurity 13 (CAS 767625-11-6)
- N-Nitroso Tamsulosin Impurity (Mixture of Isomers) (CAS CATO-C3D-5990)
- Upadacitinib Impurity 132 (CAS CATO-C4X-2405132)
- Ethyl 2-((5-(2-(1H-benzo[d]imidazol-2-yl)ethyl)-4-(4-methoxyphenyl)-4H-1,2,4-triazol-3-yl)thio)acetate (CAS 38911-92-1)
- Bromhexine Impurity 37 (CAS CATO-C4X-106037)
- Fruquintinib Impurity 11 (CAS CATO-C4X-303711)
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- 2-(3,5-Dichlorophenoxy)propan-1-ol (CAS 1226415-22-0)
- C-Peptide (Proinsulin) (CAS 59112-80-0)
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