Silodosin impurity 26 CAS CATO-C4X-175426
| CAS No. | CATO-C4X-175426 |
| Molecular Formula | C9H9F3O4S |
| Molecular Weight | 270.23 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Silodosin impurity 26 (C9H9F3O4S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Silodosin impurity 26 (CAS CATO-C4X-175426, C9H9F3O4S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Silodosin impurity 26 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 | C9H9F3O4S |
| Molecular Weight | 270.23 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Silodosin Standards
- Silodosin Impurity 29 (CAS 1251924-67-0)
- Silodosin Impurity 18 (CAS 160969-02-8)
- Silodosin Impurity 11 (CAS 160969-03-9)
- Silodosin Impurity 25 (CAS 1096141-53-5)
- Silodosin Impurity 17 (CAS 160968-99-0)
- Silodosin Impurity 30 (CAS 1639265-45-4)
- Silodosin Keto Impurity (CAS 350797-57-8)
- Silodosin S-amine Isomer (CAS 1201180-97-3)
Recommended Standards
- tert-Butyl 2-(diethoxyphosphoryl)-2-fluoroacetate (CAS 89099-95-6)
- 2-(3,4-Dihydroxybenzylidene)-6-hydroxybenzofuran-3(2H)-one (CAS 100433-06-5)
- Methyl 2-(difluoromethyl)-7-ethoxyimidazo[1,2-a]pyridine-6-carboxylate (CAS 2573212-94-7)
- 5-(4-Fluorophenyl)-1,1-dioxo-2h-1lambda6,2,6-thiadiazine-3-carboxylic acid (CAS 1011397-61-7)
- Cefazolin Impurity 52 (CAS CATO-C4X-157752)
- Siponimod Impurity 1 (CAS 877131-21-0)
- Adrenaline EP Impurity F (CAS 78995-75-2)
- 1H-Pyrazole-4-methanamine, N,3-dimethyl- (CAS 1007521-02-9)
- Thiophene-2-sulfonic acid (CAS 79-84-5)
- Methyl (Z)-1-acetyl-3-(ethoxy(phenyl)methylene)-2-oxoindoline-6-carboxylate (CAS 1175365-43-1)
- 2-{[(2,6-dichlorophenyl)methyl]sulfanyl}-5-[3-(1H-pyrrol-1-yl)thiophen-2-yl]-1,3,4-oxadiazole (CAS 478077-29-1)
- 2-[2-(4-methylphenyl)-1,3-thiazol-4-yl]acetic acid (CAS 16441-30-8)
- 2,4-Dicylohexyl-2-methylpentane (CAS 38970-72-8)
- Peptide YY (human) trifluoroacetate salt (CAS 118997-30-1)
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