4-Borono-2-bromo-5-fluorobenzoic acid CAS 957034-89-8
| CAS No. | 957034-89-8 |
| Molecular Formula | C7H5BBrFO4 |
| Molecular Weight | 262.83 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Borono-2-bromo-5-fluorobenzoic acid (CAS 957034-89-8), a certified reference material (molecular formula C7H5BBrFO4, MW 262.83 g/mol) for analytical method development and quality control.
Structurally, 4-Borono-2-bromo-5-fluorobenzoic acid (C7H5BBrFO4) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/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 262.83 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.
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-Borono-2-bromo-5-fluorobenzoic acid 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 | C7H5BBrFO4 |
| Molecular Weight | 262.83 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F/Br-containing |
Related Borono Standards
- 3-Borono-5-bromo-2-fluorobenzoic acid (CAS 957120-63-7)
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- 5-(5-Borono-1H-indol-1-yl)pentanoic acid (CAS 1072946-60-1)
- (1-borono-4-phenyl-1-cyclohexa-2,4-dienyl)boronic acid 4151-80-8 A825578 [1-(dihydroxyboranyl)-4-phenyl-cyclohexa-2,4-dien-1-yl]boronic acid (CAS 4151-80-8)
- (4'-Borono-[1,1'-biphenyl]-4-yl)phosphonic acid (CAS 2520242-80-0)
- 1-(1-Borono-1-phenylmethyl)pyrazole-4-boronic acid (CAS 1256355-17-5)
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Recommended Standards
- (5-Amino-2-iodophenyl)boronic acid (CAS 1227633-13-7)
- 2-bromo-5-(dihydroxyboranyl)-4-fluorobenzoic acid (CAS 677777-58-1)
- (2-Iodo-6-methylpyridin-4-yl)boronic acid (CAS 2225154-39-0)
- 2-Fluoro-3-bromo-5-carboxyphenylboronic acid (CAS 1452575-84-6)
- 5-Ethoxy-2-propyloxazole (CAS 90087-72-2)
- 4-(Methylthio)phenylacetic acid (CAS 16188-55-9)
- 4-(5-Methylthiophen-2-yl)-1,2,3-thiadiazole-5-carboxylic acid (CAS 1018052-74-8)
- [S(R)]-N-[(R)-[3,5-Bis(1,1-dimethylethyl)-4-methoxyphenyl][2-(dicyclohexylphosphino)phenyl]methyl]-N,2-dimethyl-2-propanesulfinamide (CAS 2565792-49-4)
- 2-{[(2-chlorophenyl)methyl]sulfanyl}-4-(2,4-difluorophenoxy)-5,6,7,8-tetrahydroquinazoline (CAS 339019-34-0)
- 3-(sec-Butylamino)-N-ethylpropanamide (CAS 1040692-83-8)
- Posaconazole Impurity 6 (CAS 149809-42-7)
- N-Hydroxy-2-methyl-isonicotinamidine (CAS 89853-53-2)
- 1-(3,5-Difluorophenyl)cyclopropanemethanamine (CAS 1249615-63-1)
- Semaglutide impurity 34 (CAS CATO-C4X-222634)
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