Ethyl 1-(2-((tert-butoxycarbonyl)amino)ethyl)-3-(4-fluorophenyl)-4-(((trifluoromethyl)sulfonyl)oxy)-1H-pyrazole-5-carboxylate CAS 1956306-71-0
| CAS No. | 1956306-71-0 |
| Molecular Formula | C20H23F4N3O7S |
| Molecular Weight | 525.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethyl 1-(2-((tert-butoxycarbonyl)amino)ethyl)-3-(4-fluorophenyl)-4-(((trifluoromethyl)sulfonyl)oxy)-1H-pyrazole-5-carboxylate (CAS 1956306-71-0), molecular formula C20H23F4N3O7S and molecular weight 525.47 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Ethyl 1-(2-((tert-butoxycarbonyl)amino)ethyl)-3-(4-fluorophenyl)-4-(((trifluoromethyl)sulfonyl)oxy)-1H-pyrazole-5-carboxylate (C20H23F4N3O7S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, fluorine 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. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 Ethyl 1-(2-((tert-butoxycarbonyl)amino)ethyl)-3-(4-fluorophenyl)-4-(((trifluoromethyl)sulfonyl)oxy)-1H-pyrazole-5-carboxylate 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 | C20H23F4N3O7S |
| Molecular Weight | 525.47 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- (S)-N-(1-(diphenylphosphanyl)-3-methylbutan-2-yl)-N-methyl-3,5-bis(trifluoromethyl)benzamide (CAS 1451090-98-4)
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