N-(4-chlorophenyl)-2-((N-(2,4-dichloro-5-methoxyphenyl)-4-fluorophenyl)sulfonamido)acetamide CAS 338967-35-4
| CAS No. | 338967-35-4 |
| Molecular Formula | C21H16Cl3FN2O4S |
| Molecular Weight | 517.79 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures N-(4-chlorophenyl)-2-((N-(2,4-dichloro-5-methoxyphenyl)-4-fluorophenyl)sulfonamido)acetamide 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.
CATO supplies N-(4-chlorophenyl)-2-((N-(2,4-dichloro-5-methoxyphenyl)-4-fluorophenyl)sulfonamido)acetamide (CAS 338967-35-4), a certified reference material (molecular formula C21H16Cl3FN2O4S, MW 517.79 g/mol) for analytical method development and quality control.
The molecular framework of N-(4-chlorophenyl)-2-((N-(2,4-dichloro-5-methoxyphenyl)-4-fluorophenyl)sulfonamido)acetamide (C21H16Cl3FN2O4S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C21H16Cl3FN2O4S |
| Molecular Weight | 517.79 g/mol |
| Purity | 97%+ |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related N Standards
- Ethyl 5-({[5-({[3-(2-chlorophenyl)-5-methyl-1,2-oxazol-4-yl]formamido}methyl)-4,5-dihydro-1,2-oxazol-3-yl]formamido}methyl)-4,5-dihydro-1,2-oxazole-3-carboxylate (CAS 338399-16-9)
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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