| CAS No. | 937599-68-3 |
| Molecular Formula | C11H13N3OS |
| Molecular Weight | 235.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 235.31 g/mol gives 1-Ethyl-2-mercapto-5,7-dimethylpyrido[2,3-d]-pyrimidin-4(1H)-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-Ethyl-2-mercapto-5,7-dimethylpyrido[2,3-d]-pyrimidin-4(1H)-one (CAS 937599-68-3) is a high-purity analytical reference standard with the molecular formula C11H13N3OS and a molecular weight of 235.31 g/mol.
Based on its molecular formula C11H13N3OS, 1-Ethyl-2-mercapto-5,7-dimethylpyrido[2,3-d]-pyrimidin-4(1H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 235.31 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), 1-Ethyl-2-mercapto-5,7-dimethylpyrido[2,3-d]-pyrimidin-4(1H)-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 | C11H13N3OS |
| Molecular Weight | 235.31 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |