| CAS No. | 851176-00-6 |
| Molecular Formula | C18H12ClN3S |
| Molecular Weight | 337.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
3-{4-chloro-6-methyl-5-phenylthieno[2,3-d]pyrimidin-2-yl}pyridine (C18H12ClN3S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
3-{4-chloro-6-methyl-5-phenylthieno[2,3-d]pyrimidin-2-yl}pyridine (CAS 851176-00-6), molecular formula C18H12ClN3S and molecular weight 337.83 g/mol, is a CATO reference standard with documented purity and traceability.
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), 3-{4-chloro-6-methyl-5-phenylthieno[2,3-d]pyrimidin-2-yl}pyridine 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 | C18H12ClN3S |
| Molecular Weight | 337.83 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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |