| CAS No. | 578698-75-6 |
| Molecular Formula | C17H16F2N2OS2 |
| Molecular Weight | 366.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-((2,6-Difluorobenzyl)thio)-3-ethyl-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one (CAS 578698-75-6) is a high-purity analytical reference standard with the molecular formula C17H16F2N2OS2 and a molecular weight of 366.45 g/mol.
Based on its molecular formula C17H16F2N2OS2, 2-((2,6-Difluorobenzyl)thio)-3-ethyl-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 366.45 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C17H16F2N2OS2 |
| Molecular Weight | 366.45 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |