4-(Difluoromethoxy)phenylboronic Acid CAS 688810-12-0
| CAS No. | 688810-12-0 |
| Molecular Formula | C7H7BF2O3 |
| Molecular Weight | 187.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-(Difluoromethoxy)phenylboronic Acid (CAS 688810-12-0), molecular formula C7H7BF2O3 and molecular weight 187.94 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-(Difluoromethoxy)phenylboronic Acid (C7H7BF2O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine 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 187.94 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).
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.
As a certified reference material (CRM), 4-(Difluoromethoxy)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 | C7H7BF2O3 |
| Molecular Weight | 187.94 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°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.) | 1985 |
| Halogen Content | F-containing |
Related Difluoromethoxy Standards
- (2-(Difluoromethoxy)phenyl)boronic acid (CAS 947533-11-1)
- 5-(difluoromethoxy)pyridine-2-carboxamide (CAS 1803584-72-6)
- 2-(Difluoromethoxy)benzoic acid (CAS 97914-59-5)
- 2-(Difluoromethoxy)isonicotinamide (CAS 2167739-11-7)
- 3-(Difluoromethoxy)benzoic acid (CAS 4837-19-8)
- 4-(Difluoromethoxy)benzoic Acid (CAS 4837-20-1)
- 3-(difluoromethoxy)-2-hydroxybenzaldehyde (CAS 1806293-28-6)
- 2-(2-(Difluoromethoxy)phenyl)ethan-1-ol (CAS 1000533-82-3)
Recommended Standards
- 3,5-Difluoro-4-methoxyphenylboronic Acid (CAS 208641-98-9)
- 4,5-Difluoro-2-methoxyphenylboronic Acid (CAS 870777-32-5)
- 3,5-Difluoro-2-methoxybenzeneboronic acid (CAS 737000-76-9)
- (2,5-Difluoro-4-methoxyphenyl)boronic acid (CAS 897958-93-9)
- N,N-Dimethyl-4-{[(2-methylpropyl)amino]methyl}aniline hydrochloride (CAS 1158615-59-8)
- Ethyl N-(tert-butoxycarbonyl)-N-methylglycinate (CAS 145060-76-0)
- 4-Bromo-2-ethoxybenzoic acid (CAS 89407-43-2)
- Tert-butyl (R)-(1-(4-bromophenyl)-3-hydroxypropan-2-yl)carbamate (CAS 1266114-00-4)
- 1-(tert-Butyldimethylsilyl)-5-chloro-1H-indole (CAS 1351619-90-3)
- N-(2,3-Dimethoxybenzyl)-1-(pyridin-3-yl)methanamine hydrobromide (CAS 1609406-48-5)
- 3-Hydroxy-3-methylindolin-2-one (CAS 3040-34-4)
- 3-Methyl-1-(3-phenyl-2,3-dihydro-4H-benzo[b][1,4]oxazin-4-yl)butan-1-one (CAS 338962-40-6)
- 4-Ethoxybenzonitrile (CAS 25117-74-2)
- Semaglutide Sodium Salt (CAS CATO-C4X-222620)
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