| CAS No. | 2223031-90-9 |
| Molecular Formula | C14H19BO4S |
| Molecular Weight | 294.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (5-(furan-2-yl)thiophen-2-yl)boronate (CAS 2223031-90-9) is a high-purity analytical reference standard with the molecular formula C14H19BO4S and a molecular weight of 294.17 g/mol.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 3-Hydroxy-2,3-dimethylbutan-2-yl hydrogen (5-(furan-2-yl)thiophen-2-yl)boronate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 294.17 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 | C14H19BO4S |
| Molecular Weight | 294.17 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1998 |
| Sulfur Atoms | 1 |