| CAS No. | 551920-93-5 |
| Molecular Formula | C24H20ClN3S |
| Molecular Weight | 417.95 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
The occurrence of (E)-4-(4-chlorophenyl)-3-((4-methylbenzyl)thio)-5-styryl-4H-1,2,4-triazole is closely related to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies (E)-4-(4-chlorophenyl)-3-((4-methylbenzyl)thio)-5-styryl-4H-1,2,4-triazole (CAS 551920-93-5), a certified reference material (molecular formula C24H20ClN3S, MW 417.95 g/mol) for analytical method development and quality control.
(E)-4-(4-chlorophenyl)-3-((4-methylbenzyl)thio)-5-styryl-4H-1,2,4-triazole (C24H20ClN3S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 (E)-4-(4-chlorophenyl)-3-((4-methylbenzyl)thio)-5-styryl-4H-1,2,4-triazole 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 | C24H20ClN3S |
| Molecular Weight | 417.95 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |