(5-Chlorobenzofuran-2-yl)boronic acid CAS 223576-64-5
| CAS No. | 223576-64-5 |
| Molecular Formula | C8H6BClO3 |
| Molecular Weight | 196.40 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies (5-Chlorobenzofuran-2-yl)boronic acid (CAS 223576-64-5), a certified reference material (molecular formula C8H6BClO3, MW 196.40 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, (5-Chlorobenzofuran-2-yl)boronic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 196.40 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H6BClO3 |
| Molecular Weight | 196.40 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| 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 |
| 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) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2020 |
| Halogen Content | Cl-containing |
Related Chlorobenzofuran Standards
- (6-Chlorobenzofuran-2-yl)boronic acid (CAS 1851286-70-8)
- 5-Chlorobenzofuran-2-carboxylic Acid (CAS 10242-10-1)
- 7-Chlorobenzofuran-4-carboxylic acid (CAS 1038509-42-0)
- 3-Chlorobenzofuran-5-carboxylic acid (CAS 1379278-90-6)
- 2-Chlorobenzofuran-5-carboxylic acid (CAS 860183-31-9)
- 5-Chlorobenzofuran-7-carboxylic acid (CAS 99517-24-5)
- 6-Chlorobenzofuran-7-carboxylic acid (CAS 379230-47-4)
- 1-(5-Chlorobenzofuran-2-yl)ethan-1-amine (CAS 147724-81-0)
Recommended Standards
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