3-Ethoxy-2,4-difluorophenylboronic acid CAS 2096341-72-7
| CAS No. | 2096341-72-7 |
| Molecular Formula | C8H9BF2O3 |
| Molecular Weight | 201.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
3-Ethoxy-2,4-difluorophenylboronic acid (CAS 2096341-72-7) is a high-purity analytical reference standard with the molecular formula C8H9BF2O3 and a molecular weight of 201.96 g/mol.
Based on its molecular formula C8H9BF2O3, 3-Ethoxy-2,4-difluorophenylboronic acid contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 201.96 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C8H9BF2O3 |
| Molecular Weight | 201.96 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 |
| 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.) | 1997 |
| Halogen Content | F-containing |
Related Ethoxy Standards
- (6-Ethoxy-2,3-difluorophenyl)boronic acid (CAS 1309980-95-7)
- (4-Ethoxy-2,6-difluorophenyl)boronic acid (CAS 1310403-94-1)
- (4-Ethoxy-2,5-difluorophenyl)boronic acid (CAS 1452575-83-5)
- (2-Ethoxy-4,5-difluorophenyl)boronic acid (CAS 870778-87-3)
- (5-Ethoxy-2,4-difluorophenyl)boronic acid (CAS 900175-12-4)
- 4-Ethoxy-2,3-difluorophenylboronic Acid (CAS 212386-71-5)
- 4-Ethoxy-3,5-difluorophenylboronic acid (CAS 2096333-93-4)
- 4-Ethoxy-3,5-difluorobenzoic acid (CAS 1017779-19-9)
Recommended Standards
- 3,5-Difluoro-4-methoxy-2-methylphenylboronic acid (CAS 2096338-65-5)
- 3,4-Dichloro-2,5,6-trifluoropyridine (CAS 52026-99-0)
- 3-(Difluoromethoxy)-4-methylphenylboronic acid (CAS 958451-74-6)
- (2,2-Bis(methoxycarbonyl)cyclopropyl)boronic acid (CAS 2225151-98-2)
- N-Isobutyl-3-phenyl-2-propyn-1-amine hydrochloride (CAS 1051363-48-4)
- Methyl (tert-butoxycarbonyl)-D-histidinate (CAS 149263-87-6)
- 1H-Pyrazole, 1-[(2,6-dichlorophenyl)methyl]-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)- (CAS 1604036-85-2)
- 2-Aminobenzyl hex-5-enoate (CAS 141362-49-4)
- 2-(3-Amino-4-chloro-1h-pyrazol-1-yl)propanoic acid (CAS 1006455-66-8)
- tert-Butyl 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidine-2-carboxylate (CAS 1822308-27-9)
- 1-(3,3-Dimethyl-2-oxobutyl)-1H-indole-2,3-dione (CAS 214417-82-0)
- 2,3,4,5,6-Pentafluoroanisole (CAS 389-40-2)
- 2-(Isopropylamino)-1-(thiazol-2-yl)ethanone (CAS 1353979-84-6)
- Insulin Degludec Impurity 15 (CAS CATO-C4X-215715)
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