2-Ethoxyphenylboronic Acid CAS 213211-69-9
| CAS No. | 213211-69-9 |
| Molecular Formula | C8H11BO3 |
| Molecular Weight | 165.98 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-Ethoxyphenylboronic 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.
2-Ethoxyphenylboronic Acid (CAS 213211-69-9), molecular formula C8H11BO3 and molecular weight 165.98 g/mol, is a CATO reference standard with documented purity and traceability.
2-Ethoxyphenylboronic Acid (C8H11BO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 | C8H11BO3 |
| Molecular Weight | 165.98 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2017 |
Related Ethoxyphenylboronic Standards
Recommended Standards
- 2,6-Dichloro-4-fluoropyridine (CAS 52074-49-4)
- 3-(Hydroxymethyl)-2-methylphenylboronic acid (CAS 2121514-26-7)
- 2,6-Dichloro-3-fluoropyridine (CAS 52208-50-1)
- 3,4-Dichloro-2-fluoropyridine (CAS 851179-03-8)
- N-(2-(5-amino-1,3,4-thiadiazol-2-yl)ethyl)benzamide (CAS 1199215-56-9)
- 8-Chlorooct-1-yne (CAS 24088-97-9)
- 5-(Benzyloxy)-4-hydroxy-3-phenyl-2H-pyrano[2,3-b]quinolin-2-one (CAS 62668-81-9)
- Diethyl 2-Fluorobenzylphosphonate (CAS 63909-54-6)
- tert-Butyl phenyl(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)carbamate (CAS 1218791-29-7)
- 1-(1-Ethyl-4-methyl-1H-pyrazol-5-yl)-N-((1-isopropyl-1H-pyrazol-5-yl)methyl)methanamine hydrochloride (CAS 1856027-99-0)
- 5,6,7,8-Tetrahydro-quinazolin-4-ol (CAS 19178-19-9)
- 4-((4-Chlorophenyl)(mercapto)methyl)phenol (CAS 1039963-45-5)
- Lifitegrast Impurity 108 (CAS CATO-C4X-2409108)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
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