| CAS No. | 618880-63-0 |
| Molecular Formula | C22H17ClN4O3S |
| Molecular Weight | 452.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 452.91 g/mol gives 4-(4-Chlorophenyl)-3-(4-methoxyphenyl)-5-((4-nitrobenzyl)thio)-4H-1,2,4-triazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-(4-Chlorophenyl)-3-(4-methoxyphenyl)-5-((4-nitrobenzyl)thio)-4H-1,2,4-triazole (CAS 618880-63-0), molecular formula C22H17ClN4O3S and molecular weight 452.91 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C22H17ClN4O3S, 4-(4-Chlorophenyl)-3-(4-methoxyphenyl)-5-((4-nitrobenzyl)thio)-4H-1,2,4-triazole contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 452.91 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), 4-(4-Chlorophenyl)-3-(4-methoxyphenyl)-5-((4-nitrobenzyl)thio)-4H-1,2,4-triazole meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
| Molecular Formula | C22H17ClN4O3S |
| Molecular Weight | 452.91 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |