3,5-Difluoro-4-(trifluoromethoxy)phenylboronic acid CAS 220943-57-7
| CAS No. | 220943-57-7 |
| Molecular Formula | C7H4BF5O3 |
| Molecular Weight | 241.91 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, 3,5-Difluoro-4-(trifluoromethoxy)phenylboronic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 241.91 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
CATO supplies 3,5-Difluoro-4-(trifluoromethoxy)phenylboronic acid (CAS 220943-57-7), a certified reference material (molecular formula C7H4BF5O3, MW 241.91 g/mol) for analytical method development and quality control.
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), 3,5-Difluoro-4-(trifluoromethoxy)phenylboronic 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 | C7H4BF5O3 |
| Molecular Weight | 241.91 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.) | 2020 |
| Halogen Content | F-containing |
Related Difluoro Standards
- (2,3-Difluoro-4-(trifluoromethoxy)phenyl)boronic acid (CAS 158178-36-0)
- (2,3-Difluoro-4-hexylphenyl)boronic acid (CAS 156684-87-6)
- 2,4-Difluoro-3-(trifluoromethoxy)benzoic acid (CAS 1119454-13-5)
- 2,3-Difluoro-4-(trifluoromethoxy)benzoic acid (CAS 1309597-49-6)
- 3,5-Difluoro-4-(trifluoromethoxy)benzoic acid (CAS 1360438-69-2)
- 2,3-Difluoro-6-(trifluoromethoxy)benzoic acid (CAS 2244076-73-9)
- 2,6-Difluoro-3-(trifluoromethoxy)benzoic acid (CAS 2244077-26-5)
- 2,6-Difluoro-4-(trifluoromethoxy)benzoic acid (CAS 2244079-72-7)
Recommended Standards
- (3aS,5aS,8aR,8bR)-2,7-Diethyltetrahydro-5H-thiopyrano[2,3-d:4,5-d']bis([1,3,2]dioxaborole) (CAS 74793-32-1)
- Trimethyl(3-pyridyl)tin (CAS 59020-09-6)
- Trimethyl(4-pyridyl)tin (CAS 59020-06-3)
- 2-(Trimethylstannyl)pyridine (CAS 13737-05-8)
- 5-((2-Methylpiperidin-1-yl)methyl)furan-2-carboxylic acid (CAS 926241-28-3)
- 4-(chloromethyl)-1-methylpyrrolidin-2-one (CAS 2092849-31-3)
- Ethanone, 1-(5-methyl-1h-indazol-1-yl)- (CAS 343770-79-6)
- 5-Fluorobenzo[d][1,3]dioxole-4-carboxylic acid (CAS 492444-08-3)
- 4-Bromo-N-(2-methoxy-5-methylphenyl)benzenesulfonamide (CAS 349122-26-5)
- 4,6-Dichloropicolinimidamide (CAS 1179533-48-2)
- 2-(2,5-Dimethylfuran-3-carbonyl)cyclopentan-1-one (CAS 1247184-97-9)
- 3,5-Dichloro-1-(3,4-dimethylphenyl)pyrazin-2(1H)-one (CAS 1269530-87-1)
- 5,5-Dimethyl-3-propylimidazolidine-2,4-dione (CAS 97304-48-8)
- C-Peptide (human) (CAS 33017-11-7)
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