| CAS No. | 923717-75-3 |
| Molecular Formula | C12H13N3O2S |
| Molecular Weight | 263.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 263.32 g/mol gives 2-((4,5-Dimethyl-4h-1,2,4-triazol-3-yl)thio)-1-(4-hydroxyphenyl)ethan-1-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-((4,5-Dimethyl-4h-1,2,4-triazol-3-yl)thio)-1-(4-hydroxyphenyl)ethan-1-one (CAS 923717-75-3), molecular formula C12H13N3O2S and molecular weight 263.32 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 2-((4,5-Dimethyl-4h-1,2,4-triazol-3-yl)thio)-1-(4-hydroxyphenyl)ethan-1-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 263.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
As a certified reference material (CRM), 2-((4,5-Dimethyl-4h-1,2,4-triazol-3-yl)thio)-1-(4-hydroxyphenyl)ethan-1-one 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 | C12H13N3O2S |
| Molecular Weight | 263.32 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |