| CAS No. | 174573-84-3 |
| Molecular Formula | C11H13N3OS |
| Molecular Weight | 235.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 235.31 g/mol gives 4-Ethyl-5-(2-methoxyphenyl)-4H-1,2,4-triazole-3-thiol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Ethyl-5-(2-methoxyphenyl)-4H-1,2,4-triazole-3-thiol (CAS 174573-84-3), molecular formula C11H13N3OS and molecular weight 235.31 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 4-Ethyl-5-(2-methoxyphenyl)-4H-1,2,4-triazole-3-thiol (C11H13N3OS) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. 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. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 4-Ethyl-5-(2-methoxyphenyl)-4H-1,2,4-triazole-3-thiol 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 | C11H13N3OS |
| Molecular Weight | 235.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2006 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |