| CAS No. | 895360-66-4 |
| Molecular Formula | C16H15ClN4OS |
| Molecular Weight | 346.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 346.83 g/mol gives 1-(2-((3-Chlorobenzyl)thio)-5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-6-yl)ethan-1-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-(2-((3-Chlorobenzyl)thio)-5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-6-yl)ethan-1-one (CAS 895360-66-4), molecular formula C16H15ClN4OS and molecular weight 346.83 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-(2-((3-Chlorobenzyl)thio)-5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-6-yl)ethan-1-one (C16H15ClN4OS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 346.83 g/mol, it falls into the moderately-high-molecular-weight range. 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.
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 | C16H15ClN4OS |
| Molecular Weight | 346.83 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.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |