| CAS No. | 344272-52-2 |
| Molecular Formula | C19H18BrCl2N3OS2 |
| Molecular Weight | 519.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
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.
3-{[(4-bromophenyl)methyl]sulfanyl}-5-{[(2,4-dichlorophenyl)methanesulfinyl]methyl}-4-ethyl-4H-1,2,4-triazole (CAS 344272-52-2), molecular formula C19H18BrCl2N3OS2 and molecular weight 519.31 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-{[(4-bromophenyl)methyl]sulfanyl}-5-{[(2,4-dichlorophenyl)methanesulfinyl]methyl}-4-ethyl-4H-1,2,4-triazole (C19H18BrCl2N3OS2) is characterized by a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine/bromine 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.
CATO manufactures 3-{[(4-bromophenyl)methyl]sulfanyl}-5-{[(2,4-dichlorophenyl)methanesulfinyl]methyl}-4-ethyl-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 | C19H18BrCl2N3OS2 |
| Molecular Weight | 519.31 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |