5-Bromopyridine-2-boronic Acid CAS 652148-97-5
| CAS No. | 652148-97-5 |
| Molecular Formula | C5H5BBrNO2 |
| Molecular Weight | 201.81 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.
5-Bromopyridine-2-boronic Acid (CAS 652148-97-5), molecular formula C5H5BBrNO2 and molecular weight 201.81 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, 5-Bromopyridine-2-boronic Acid is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 201.81 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C5H5BBrNO2 |
| Molecular Weight | 201.81 g/mol |
| Appearance | White to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromopyridine Standards
- 2-Bromopyridine-3-boronic Acid (CAS 452972-08-6)
- 5-Bromopyridine-3-boronic acid (CAS 452972-09-7)
- 3-Bromopyridine-2-carboxylic Acid (CAS 30683-23-9)
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Recommended Standards
- (6-Bromopyridin-2-yl)boronic acid (CAS 440680-34-2)
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- (2-Bromo-4-pyridinyl)-boronic Acid (CAS 458532-94-0)
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