3-Bromo-4-methoxyphenylboronic acid CAS 1109791-90-3
| CAS No. | 1109791-90-3 |
| Molecular Formula | C7H8BBrO3 |
| Molecular Weight | 230.85 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3-Bromo-4-methoxyphenylboronic acid.
3-Bromo-4-methoxyphenylboronic acid (CAS 1109791-90-3) is a high-purity analytical reference standard with the molecular formula C7H8BBrO3 and a molecular weight of 230.85 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, 3-Bromo-4-methoxyphenylboronic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 230.85 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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 | C7H8BBrO3 |
| Molecular Weight | 230.85 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.) | 1989 |
| Halogen Content | Br-containing |
Related Bromo Standards
- (4-Bromo-3-methoxyphenyl)boronic acid (CAS 1256345-59-1)
- 2-Bromo-4-methoxyphenylboronic acid (CAS 1879166-84-3)
- (2-Bromo-3-methoxyphenyl)boronic acid (CAS 849630-88-2)
- (2-Bromo-4-ethylpyrimidin-5-yl)boronic acid (CAS 2225175-59-5)
- (3-Bromo-2-methoxyphenyl)boronic acid (CAS 352525-80-5)
- (3-Bromo-5-methoxyphenyl)boronic acid (CAS 849062-12-0)
- (5-Bromo-2-methoxyphenyl)boronic acid (CAS 89694-45-1)
- 2-Bromo-5-methoxybenzene boronic acid (CAS 89694-44-0)
Recommended Standards
- 2-Amino-4 inverted exclamation marka-chlorodiphenylamine 68817-71-0 N-(4-Chlorophenyl)-1,2-phenylenediamine (CAS 68817-71-0)
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- Chlorodiphenylsilane (CAS 1631-83-0)
- 1-[4-(chloromethyl)phenyl]-3,5-dimethyl-1H-pyrazole (CAS 956508-17-1)
- 2-Chloro-4-isopropyl-1,3-benzothiazole (CAS 182344-55-4)
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- allo-3α-Tetrahydro cortisol 21-O-β-D-glucuronide (CAS 131061-62-6)
- 5-(3,5-Difluorophenyl)-1h-pyrazol-3-amine (CAS 1107481-22-0)
- 8-Fluoroquinoline (CAS 394-68-3)
- 1-(4-Chloro-2-methylphenyl)-3-(1-((4-fluorophenyl)sulfonyl)piperidin-4-yl)urea (CAS 672950-46-8)
- 4-Ethylstyrene(stabilized with MEHQ) (CAS 3454-07-7)
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