| CAS No. | 318959-29-4 |
| Molecular Formula | C19H12Cl2F6N2O3S |
| Molecular Weight | 533.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of 5-(2,4-Dichlorophenoxy)-1-methyl-3-(trifluoromethyl)-4-(((3-(trifluoromethyl)phenyl)sulfonyl)methyl)-1H-pyrazole is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-(2,4-Dichlorophenoxy)-1-methyl-3-(trifluoromethyl)-4-(((3-(trifluoromethyl)phenyl)sulfonyl)methyl)-1H-pyrazole (CAS 318959-29-4), molecular formula C19H12Cl2F6N2O3S and molecular weight 533.27 g/mol, is a CATO reference standard with documented purity and traceability.
5-(2,4-Dichlorophenoxy)-1-methyl-3-(trifluoromethyl)-4-(((3-(trifluoromethyl)phenyl)sulfonyl)methyl)-1H-pyrazole (C19H12Cl2F6N2O3S) contains a steroid 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 5-(2,4-Dichlorophenoxy)-1-methyl-3-(trifluoromethyl)-4-(((3-(trifluoromethyl)phenyl)sulfonyl)methyl)-1H-pyrazole 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 | C19H12Cl2F6N2O3S |
| Molecular Weight | 533.27 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) | 11.0 |
| 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 |