| CAS No. | 885459-79-0 |
| Molecular Formula | C19H14N2OS2 |
| Molecular Weight | 350.46 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Compared with other compounds in its class, the molecular weight of 350.46 g/mol gives 3-(2-Methylphenyl)-5-phenyl-2-sulfanyl-3h,4h-thieno[2,3-d]pyrimidin-4-one distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 3-(2-Methylphenyl)-5-phenyl-2-sulfanyl-3h,4h-thieno[2,3-d]pyrimidin-4-one (CAS 885459-79-0), a certified reference material (molecular formula C19H14N2OS2, MW 350.46 g/mol) for analytical method development and quality control.
Structurally, 3-(2-Methylphenyl)-5-phenyl-2-sulfanyl-3h,4h-thieno[2,3-d]pyrimidin-4-one (C19H14N2OS2) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 350.46 g/mol, it falls into the moderately-high-molecular-weight range. 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.
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 | C19H14N2OS2 |
| Molecular Weight | 350.46 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |