4-Bromo-3-hydroxyphenylboronic acid pinacol ester CAS 2121512-98-7
| CAS No. | 2121512-98-7 |
| Molecular Formula | C12H16BBrO3 |
| Molecular Weight | 298.97 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 4-Bromo-3-hydroxyphenylboronic acid pinacol ester.
4-Bromo-3-hydroxyphenylboronic acid pinacol ester (CAS 2121512-98-7), molecular formula C12H16BBrO3 and molecular weight 298.97 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Bromo-3-hydroxyphenylboronic acid pinacol ester (C12H16BBrO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.5, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 298.97 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), 4-Bromo-3-hydroxyphenylboronic acid pinacol ester meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C12H16BBrO3 |
| Molecular Weight | 298.97 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 3-Bromo-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (CAS 1218789-50-4)
- 2-Bromo-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (CAS 1431330-20-9)
- 2-Bromo-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (CAS 1431330-24-3)
- 5-Bromo-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-amine (CAS 1449301-71-6)
- (2-Bromo-4-(4-methylpiperazin-1-yl)phenyl)boronic acid (CAS 2225171-86-6)
- (5-Bromo-6-(2-methylpiperidin-1-yl)pyridin-3-yl)boronic acid (CAS 2225152-16-7)
- (5-Bromo-6-(3-methylpiperidin-1-yl)pyridin-3-yl)boronic acid (CAS 2225153-60-4)
- (5-Bromo-6-(4-methylpiperidin-1-yl)pyridin-3-yl)boronic acid (CAS 2225174-38-7)
Recommended Standards
- 4-Bromo-2-(4,4,6-trimethyl-1,3,2-dioxaborinan-2-yl)phenol (CAS 2096998-20-6)
- 2-Bromo-1-(2-bromo-4-methylthiazol-5-yl)ethanone (CAS 1461703-01-4)
- 4-Bromo-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenol (CAS 2095797-20-7)
- N-(2,5-dibromothiophen-3-yl)acetamide (CAS 89581-54-4)
- 5-Chloro-4-(4-methoxyphenoxy)pyrimidine (CAS 1823266-89-2)
- 2,4-Difluoro-6-methylbenzodifluoride (CAS 1803826-64-3)
- 1-(4-Fluorophenyl)-N-methyl-4-nitro-1H-pyrazol-5-amine (CAS 318238-08-3)
- 3,3-Dioctyl-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepine (CAS 259139-23-6)
- 4-Amino-5-(difluoromethyl)-2-hydroxynicotinoyl chloride (CAS 1805211-84-0)
- 2-(Difluoromethyl)-4,6-dihydroxypyridine-3-acetic acid (CAS 1804690-55-8)
- 89511-33-1 (2-~13~C)Prop-2-enenitrile DTXSID50584345 (CAS 89511-33-1)
- 3-Ethynyl-5-nitropyridine (CAS 1211578-08-3)
- Methyl 2,4-dimethylthieno[3,4-b]pyridine-7-carboxylate (CAS 74695-25-3)
- Insulin Degludec Impurity 16 (CAS CATO-C4X-215716)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com