4,5-Dimethyl-2-ethoxyphenylboronic acid, pinacol ester CAS 2121514-05-2
| CAS No. | 2121514-05-2 |
| Molecular Formula | C16H25BO3 |
| Molecular Weight | 276.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H25BO3, 4,5-Dimethyl-2-ethoxyphenylboronic acid, pinacol ester contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 276.18 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
4,5-Dimethyl-2-ethoxyphenylboronic acid, pinacol ester (CAS 2121514-05-2) is a high-purity analytical reference standard with the molecular formula C16H25BO3 and a molecular weight of 276.18 g/mol.
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.
CATO manufactures 4,5-Dimethyl-2-ethoxyphenylboronic acid, pinacol ester under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H25BO3 |
| Molecular Weight | 276.18 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
Related Dimethyl Standards
- 5,5-Dimethyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyridine (CAS 2057512-71-5)
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Recommended Standards
- 4,4,5,5-Tetramethyl-2-(5-methyl-2-propan-2-yloxy-phenyl)-1,3,2-dioxaborolane (CAS 2121512-73-8)
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Why CATO?
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