| CAS No. | 2028-63-9 |
| Molecular Formula | C4H6O |
| Molecular Weight | 70.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
3-Butyn-2-ol (CAS 2028-63-9) is a high-purity analytical reference standard with the molecular formula C4H6O and a molecular weight of 70.09 g/mol.
The molecular framework of 3-Butyn-2-ol (C4H6O) is characterized by 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.
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 | C4H6O |
| Molecular Weight | 70.09 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.) | 1957 |