2-Hydroxy-4-methylphenylboronic Acid Pinacol Ester CAS 517864-13-0
| CAS No. | 517864-13-0 |
| Molecular Formula | C13H19BO3 |
| Molecular Weight | 234.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 2-Hydroxy-4-methylphenylboronic Acid Pinacol Ester (CAS 517864-13-0), a certified reference material (molecular formula C13H19BO3, MW 234.10 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 2-Hydroxy-4-methylphenylboronic Acid Pinacol Ester is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 234.10 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.
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.
Physical & Chemical Properties
| Molecular Formula | C13H19BO3 |
| Molecular Weight | 234.10 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
Related Hydroxy Standards
- 3-Hydroxy-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzaldehyde (CAS 1604802-47-2)
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Recommended Standards
- 2-FORMYLBENZENEBORONIC ACID PINACOL ESTER (CAS 2304635-60-5)
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- 2-Ethyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazine (CAS 2223042-20-2)
- 2-Methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (CAS 351457-33-5)
- 5-Methyl-2,5-diazaspiro[3.4]octane dihydrochloride (CAS 1421372-18-0)
- 2-(Trifluoromethyl)butane-1,2-diol (CAS 2143510-29-4)
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- TERT-BUTYL 3-(BENZYLOXY)PYRROLIDINE-1-CARBOXYLATE (CAS 127342-21-6)
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