| CAS No. | 866049-12-9 |
| Molecular Formula | C14H12N2S3 |
| Molecular Weight | 304.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
4-[(4-Methylphenyl)sulfanyl]-2-(methylsulfanyl)thieno[3,2-d]pyrimidine (CAS 866049-12-9), molecular formula C14H12N2S3 and molecular weight 304.45 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C14H12N2S3, 4-[(4-Methylphenyl)sulfanyl]-2-(methylsulfanyl)thieno[3,2-d]pyrimidine contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 304.45 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.
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), 4-[(4-Methylphenyl)sulfanyl]-2-(methylsulfanyl)thieno[3,2-d]pyrimidine 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 | C14H12N2S3 |
| Molecular Weight | 304.45 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 3 |