| CAS No. | 5309-77-3 |
| Molecular Formula | C5H8OS |
| Molecular Weight | 116.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-(Prop-2-yn-1-ylsulfanyl)ethan-1-ol (CAS 5309-77-3), molecular formula C5H8OS and molecular weight 116.18 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-(Prop-2-yn-1-ylsulfanyl)ethan-1-ol (C5H8OS) is characterized by sulfur-containing functionality, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development.
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 | C5H8OS |
| Molecular Weight | 116.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1958 |
| Sulfur Atoms | 1 |