| CAS No. | 898780-77-3 |
| Molecular Formula | C17H18OS |
| Molecular Weight | 270.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
3-Methyl-2-(4-thiomethylphenyl)propiophenone (CAS 898780-77-3) is a high-purity analytical reference standard with the molecular formula C17H18OS and a molecular weight of 270.39 g/mol.
Owing to a steroid core, sulfur-containing functionality, a hydroxyl group, an ether linkage, 3-Methyl-2-(4-thiomethylphenyl)propiophenone is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 270.39 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C17H18OS |
| Molecular Weight | 270.39 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Sulfur Atoms | 1 |