3-Bromo-5-carboxythiophene-2-boronic acid CAS 1451392-85-0
| CAS No. | 1451392-85-0 |
| Molecular Formula | C5H4BBrO4S |
| Molecular Weight | 250.86 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.
3-Bromo-5-carboxythiophene-2-boronic acid (CAS 1451392-85-0) is a high-purity analytical reference standard with the molecular formula C5H4BBrO4S and a molecular weight of 250.86 g/mol.
Based on its molecular formula C5H4BBrO4S, 3-Bromo-5-carboxythiophene-2-boronic acid contains a carbohydrate-derived structure, a sulfone group, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 250.86 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.
Physical & Chemical Properties
| Molecular Formula | C5H4BBrO4S |
| Molecular Weight | 250.86 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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.) | 1992 |
| Halogen Content | Br-containing |
| Sulfur Atoms | 1 |
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Recommended Standards
- 5-(chloromethyl)-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-pyrazole (CAS 913346-47-1)
- (2,6-Dichloro-3,5-dimethoxyphenyl)boronic acid (CAS 851756-62-2)
- 3-(chloromethyl)-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-pyrazole (CAS 913346-22-2)
- (3-Bromonaphthalen-2-yl)boronic acid (CAS 1301205-62-8)
- 10-Β-D-glucopyranosyl-1,8-dihydroxy-3-(hydroxymethyl)-9(10H)-anthracenone (CAS 452311-56-7)
- 4-Iodoisoxazol-3-amine (CAS 1500614-87-8)
- 7-Hydrazineyl-5-isopropyl-3-phenylpyrazolo[1,5-a]pyrimidine (CAS 946259-92-3)
- 4,4-Difluoro-1-piperidin-4-ylmethyl-piperidine (CAS 1878970-42-3)
- 2-(6-Bromo-4-(difluoromethyl)-5-iodopyridin-3-yl)acetonitrile (CAS 1807010-71-4)
- 5-Bromo-2-chloro-6-morpholinonicotinic acid (CAS 1311254-66-6)
- 3-(2-Methyl-1H-indol-3-yl)propan-1-ol (CAS 34609-83-1)
- 3-Methoxy-5-(trifluoromethoxy)phenol (CAS 1261752-88-8)
- n-(2-Aminobenzyl)acetamide (CAS 85690-51-3)
- Tirzepatide Impurity 38 (CAS CATO-C4X-324038)
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