3-Ethylphenylboronic Acid CAS 90555-65-0
| CAS No. | 90555-65-0 |
| Molecular Formula | C8H11BO2 |
| Molecular Weight | 149.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 3-Ethylphenylboronic Acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
3-Ethylphenylboronic Acid (CAS 90555-65-0) is a high-purity analytical reference standard with the molecular formula C8H11BO2 and a molecular weight of 149.98 g/mol.
Based on its molecular formula C8H11BO2, 3-Ethylphenylboronic Acid contains a carboxylic acid group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 149.98 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C8H11BO2 |
| Molecular Weight | 149.98 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1982 |
Related Ethylphenylboronic Standards
Recommended Standards
- 3,4-Dimethylphenylboronic Acid (CAS 55499-43-9)
- 2-Phenylethylboronic Acid (CAS 34420-17-2)
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- 2,4-Dimethylphenylboronic Acid (CAS 55499-44-0)
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