| CAS No. | 577698-04-5 |
| Molecular Formula | C16H15BrN4S |
| Molecular Weight | 375.29 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-(5-((3-Bromobenzyl)thio)-4-ethyl-4H-1,2,4-triazol-3-yl)pyridine (CAS 577698-04-5), molecular formula C16H15BrN4S and molecular weight 375.29 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-(5-((3-Bromobenzyl)thio)-4-ethyl-4H-1,2,4-triazol-3-yl)pyridine (C16H15BrN4S) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, 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. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures 3-(5-((3-Bromobenzyl)thio)-4-ethyl-4H-1,2,4-triazol-3-yl)pyridine 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 | C16H15BrN4S |
| Molecular Weight | 375.29 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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.) | 1984 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |