| CAS No. | 921541-19-7 |
| Molecular Formula | C19H20N4OS |
| Molecular Weight | 352.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
7-(4-Methoxyphenyl)-3-((3-methylbenzyl)thio)-6,7-dihydro-5H-imidazo[2,1-c][1,2,4]triazole (CAS 921541-19-7), molecular formula C19H20N4OS and molecular weight 352.45 g/mol, is a CATO reference standard with documented purity and traceability.
7-(4-Methoxyphenyl)-3-((3-methylbenzyl)thio)-6,7-dihydro-5H-imidazo[2,1-c][1,2,4]triazole (C19H20N4OS) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
| Molecular Formula | C19H20N4OS |
| Molecular Weight | 352.45 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |