4-Ethoxy-3,5-difluorophenylboronic acid CAS 2096333-93-4
| CAS No. | 2096333-93-4 |
| Molecular Formula | C8H9BF2O3 |
| Molecular Weight | 201.96 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 201.96 g/mol gives 4-Ethoxy-3,5-difluorophenylboronic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4-Ethoxy-3,5-difluorophenylboronic acid (CAS 2096333-93-4), a certified reference material (molecular formula C8H9BF2O3, MW 201.96 g/mol) for analytical method development and quality control.
Structurally, 4-Ethoxy-3,5-difluorophenylboronic acid (C8H9BF2O3) 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 201.96 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.
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.
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)
- 3-Ethoxy-2,4-difluorophenylboronic acid (CAS 2096341-72-7)
- 4-Ethoxy-2,3-difluorophenylboronic Acid (CAS 212386-71-5)
- 4-Ethoxy-3,5-difluorobenzoic acid (CAS 1017779-19-9)
Recommended Standards
- (2,2-Bis(methoxycarbonyl)cyclopropyl)boronic acid (CAS 2225151-98-2)
- (2-(Pyrazin-2-yl)pyrimidin-5-yl)boronic acid (CAS 2225178-68-5)
- 3,5-Difluoro-4-methoxy-2-methylphenylboronic acid (CAS 2096338-65-5)
- [2,4'-Bipyrimidin]-5-ylboronic acid (CAS 2225172-40-5)
- (5-Bromo-2-oxo-2H-pyridin-1-yl)-acetic acid methyl ester (CAS 1040020-44-7)
- 2-Nitrobenzylamine hydrochloride (CAS 24835-08-3)
- 2-(3-Methyl-2-oxopyridin-1(2H)-yl)acetohydrazide (CAS 934174-60-4)
- (1-(3-Bromophenyl)cyclopentyl)methanol (CAS 1782218-94-3)
- (2R)-Ethyl 5-hydroxytetrahydrofuran-2-carboxylate (CAS 208173-52-8)
- Methyl 6-chloro-3-fluoro-2-methylbenzoate (CAS 1376760-13-2)
- 5-Bromo-1-benzothiophene-2-carboxylic acid (CAS 7312-10-9)
- Empagliflozin Impurity 25 (CAS 915095-89-5)
- 2-Chloro-7-methyl-3-phenylquinoline (CAS 73863-47-5)
- Insulin Degludec Impurity 11 (CAS CATO-C4X-215711)
Why CATO?
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