2-Chloro-6-hydroxyphenylboronic Acid CAS 958646-70-3
| CAS No. | 958646-70-3 |
| Molecular Formula | C6H6BClO3 |
| Molecular Weight | 172.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
2-Chloro-6-hydroxyphenylboronic Acid (CAS 958646-70-3) is a high-purity analytical reference standard with the molecular formula C6H6BClO3 and a molecular weight of 172.37 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, 2-Chloro-6-hydroxyphenylboronic Acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 172.37 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C6H6BClO3 |
| Molecular Weight | 172.37 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- (3-Chloro-5-hydroxyphenyl)boronic acid (CAS 1214900-52-3)
- (4-Chloro-2-hydroxyphenyl)boronic acid (CAS 1238196-66-1)
- (3-Chloro-4-hydroxyphenyl)boronic acid (CAS 182344-13-4)
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Recommended Standards
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