2-Bromo-5-hydroxyphenylboronic acid CAS 958646-68-9
| CAS No. | 958646-68-9 |
| Molecular Formula | C6H6BBrO3 |
| Molecular Weight | 216.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 2-Bromo-5-hydroxyphenylboronic acid (CAS 958646-68-9), a certified reference material (molecular formula C6H6BBrO3, MW 216.83 g/mol) for analytical method development and quality control.
Structurally, 2-Bromo-5-hydroxyphenylboronic acid (C6H6BBrO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.5, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 216.83 g/mol, it falls into the medium-molecular-weight range. 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 | C6H6BBrO3 |
| Molecular Weight | 216.83 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.) | 1987 |
| Halogen Content | Br-containing |
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Recommended Standards
- Dibromoacetamide (CAS 598-70-9)
- 2,3,5,6-Tetrachloropyridine (CAS 2402-79-1)
- 2,3,4,5-Tetrachloropyridine (CAS 2808-86-8)
- 1-Chloro-5-triethylsilyl-1-pentyne (CAS 892156-07-9)
- 3-Amino-5-bromo-3,4-dihydroquinolin-2(1H)-one hydrochloride (CAS 2766577-11-9)
- N-[2-(3-Amino-4-methoxyphenyl)ethyl]acetamide hydrochloride, 97% (CAS 212828-82-5)
- (R)-1-(3-Bromo-4-methylphenyl)ethan-1-amine (CAS 1213126-07-8)
- 2-Morpholino-3-nitrobenzonitrile (CAS 1956332-82-3)
- 2-amino-4-methyl-1-(thiophen-2-yl)pentan-1-ol (CAS 1181447-86-8)
- Allyl 3-oxopiperazine-1-carboxylate (CAS 156440-97-0)
- 2-(4-((Benzyloxy)carbonyl)-3-(methoxycarbonyl)piperazin-1-yl)acetic acid (CAS 1353945-61-5)
- 1-(2-Chlorophenyl)-2-((2-methoxyethyl)thio)ethan-1-one (CAS 1157308-59-2)
- 6,7-Difluoro-2-methyl-3,4-dihydro-2H-1,4-benzoxazin-3-one (CAS 1267214-31-2)
- Liraglutide Impurity 26 (CAS CATO-C4X-199226)
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