| CAS No. | 956543-97-8 |
| Molecular Formula | C18H14ClF3N4O5S |
| Molecular Weight | 490.84 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
4-Chloro-N-((1-methyl-5-phenoxy-3-(trifluoromethyl)-1H-pyrazol-4-yl)methyl)-3-nitrobenzenesulfonamide (C18H14ClF3N4O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 4-Chloro-N-((1-methyl-5-phenoxy-3-(trifluoromethyl)-1H-pyrazol-4-yl)methyl)-3-nitrobenzenesulfonamide (CAS 956543-97-8), a certified reference material (molecular formula C18H14ClF3N4O5S, MW 490.84 g/mol) for analytical method development and quality control.
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.
CATO manufactures 4-Chloro-N-((1-methyl-5-phenoxy-3-(trifluoromethyl)-1H-pyrazol-4-yl)methyl)-3-nitrobenzenesulfonamide 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.
| Molecular Formula | C18H14ClF3N4O5S |
| Molecular Weight | 490.84 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |