(E)-1-methyl-5-(phenylthio)-3-(trifluoromethyl)-1H-pyrazole-4-carbaldehyde O-(2,4-dichlorobenzyl) oxime CAS 321553-28-0
| CAS No. | 321553-28-0 |
| Molecular Formula | C19H14Cl2F3N3OS |
| Molecular Weight | 460.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-1-methyl-5-(phenylthio)-3-(trifluoromethyl)-1H-pyrazole-4-carbaldehyde O-(2,4-dichlorobenzyl) oxime (CAS 321553-28-0), molecular formula C19H14Cl2F3N3OS and molecular weight 460.30 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (E)-1-methyl-5-(phenylthio)-3-(trifluoromethyl)-1H-pyrazole-4-carbaldehyde O-(2,4-dichlorobenzyl) oxime (C19H14Cl2F3N3OS) is characterized by a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures (E)-1-methyl-5-(phenylthio)-3-(trifluoromethyl)-1H-pyrazole-4-carbaldehyde O-(2,4-dichlorobenzyl) oxime 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 | C19H14Cl2F3N3OS |
| Molecular Weight | 460.30 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F/Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Recommended Standards
- (E)-[(4-Chlorophenyl)methoxy]({5-[(4-chlorophenyl)sulfanyl]-1-methyl-3-(trifluoromethyl)-1H-pyrazol-4-yl}methylidene)amine (CAS 321533-78-2)
- Macitentan impurity 31 (CAS CATO-C4X-117531)
- 5-((4-Bromophenyl)amino)-3-(2-(1,3-dioxoisoindolin-2-yl)ethyl)thiazolidine-2,4-dione (CAS 1025749-68-1)
- 2-[(4-Bromophenyl)sulfanyl]-3-[3-(trifluoromethyl)phenyl]quinoline (CAS 339103-53-6)
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Why CATO?
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