4-Ethylphenylboronic Acid
- CAS No.63139-21-9
- GradeIndustrial / Pharmaceutical
- Availability● In Stock
High-purity 4-Ethylphenylboronic acid (≥98.0%) for use as a key building block in pharmaceutical and OLED material synthesis.
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Product Overview
4-Ethylphenylboronic acid is a high-value arylboronic acid derivative widely employed as a versatile intermediate in modern organic synthesis. With a molecular formula of C8H11BO2 and a molecular weight of 149.98 g/mol, this compound features excellent reactivity in cross-coupling transformations, particularly Suzuki-Miyaura reactions, which are foundational in the construction of biaryl motifs prevalent in active pharmaceutical ingredients and advanced electronic materials.
Specifications
| Molecular Formula | C8H11BO2 |
|---|---|
| Molecular Weight | 149.98 g/mol |
| CAS Number | 63139-21-9 |
| Appearance | White powder |
| Assay (GC/HPLC) | ≥98.0% |
| Water Content (KF) | ≤0.50% |
| Melting Point | 150–155 °C (lit.) |
| Boiling Point | 285.1 °C at 760 mmHg |
| Density | 1.07 g/cm³ |
| Refractive Index | 1.521 |
| Flash Point | 126.2 °C |
| Hazard Classification | Non-dangerous goods |
Industrial Applications
This boronic acid serves primarily as a critical synthon in the development of complex organic molecules. Its primary applications include:
- Pharmaceutical intermediates for APIs targeting chronic and oncological conditions through palladium-catalyzed C–C bond formation.
- OLED and organic semiconductor material synthesis, where precise aromatic substitution patterns are required for optimal charge transport and luminescence properties.
- Agrochemical research, enabling the modular assembly of novel bioactive scaffolds.
Stored in a cool, dry, and well-ventilated area with containers tightly sealed to prevent moisture uptake, 4-Ethylphenylboronic acid maintains stability under recommended conditions. Standard packaging is 25 kg per drum, with custom configurations available upon request to support global R&D and manufacturing operations.
