| CAS No. | 577988-96-6 |
| Molecular Formula | C17H17ClN2OS2 |
| Molecular Weight | 364.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 364.91 g/mol gives 2-((3-Chlorobenzyl)thio)-3-ethyl-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-((3-Chlorobenzyl)thio)-3-ethyl-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-one (CAS 577988-96-6), molecular formula C17H17ClN2OS2 and molecular weight 364.91 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C17H17ClN2OS2, 2-((3-Chlorobenzyl)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, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 364.91 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.
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-((3-Chlorobenzyl)thio)-3-ethyl-5,6-dimethylthieno[2,3-d]pyrimidin-4(3H)-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 | C17H17ClN2OS2 |
| Molecular Weight | 364.91 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 | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |