(3,4-Difluoro-2-methoxyphenyl)boronic acid CAS 905583-06-4
| CAS No. | 905583-06-4 |
| Molecular Formula | C7H7BF2O3 |
| Molecular Weight | 187.94 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.
CATO supplies (3,4-Difluoro-2-methoxyphenyl)boronic acid (CAS 905583-06-4), a certified reference material (molecular formula C7H7BF2O3, MW 187.94 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, (3,4-Difluoro-2-methoxyphenyl)boronic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 187.94 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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.) | 1987 |
| Halogen Content | F-containing |
Related Difluoro Standards
- 2,3-Difluoro-4-(hydroxymethyl)phenylboronic acid (CAS 1315281-32-3)
- 2,4-Difluoro-3-(hydroxymethyl)phenylboronic acid (CAS 1352813-46-7)
- (2,4-Difluoro-5-methoxyphenyl)boronic acid (CAS 1395417-65-8)
- (2,3-Difluoro-4-methoxyphenyl)boronic acid (CAS 170981-41-6)
- 2,4-Difluoro-6-methoxyphenylboronic Acid (CAS 1808997-86-5)
- (2,4-Difluoro-3-methoxyphenyl)boronic acid (CAS 406482-18-6)
- (3,4-Difluoro-5-methoxyphenyl)boronic acid (CAS 925910-42-5)
- (3,5-Difluoro-4-(hydroxymethyl)phenyl)boronic acid (CAS 917969-79-0)
Recommended Standards
- (2-(Difluoromethoxy)phenyl)boronic acid (CAS 947533-11-1)
- (3,6-Difluoro-2-methoxyphenyl)boronic acid (CAS 919355-30-9)
- 2,3-Difluoro-5-methoxyphenylboronic acid (CAS 2230876-12-5)
- (2-(1,1-Difluoroethyl)pyrimidin-5-yl)boronic acid (CAS 1646268-29-2)
- 7-chloro-1H,2H,3H-pyrrolo[2,3-c]pyridine (CAS 1338219-65-0)
- Dimethyl 2,3-dihydro-1H-pyrrolizine-6,7-dicarboxylate (CAS 62563-06-8)
- 2-(1-(4-Nitrophenyl)propylidene)malononitrile (CAS 605661-10-7)
- 2-(2-(Diethylamino)ethoxy)-1-phenylethan-1-ol (CAS 27078-43-9)
- N-(4-Aminocyclohexyl)-3,4-difluorobenzamide (CAS 771545-82-5)
- 3,4-Dihydro-1H-spiro[naphthalene-2,4'-piperidine]-1-one (CAS 136080-34-7)
- 2-(2-((2-Nitrophenyl)amino)-2-oxoethoxy)acetic acid (CAS 736972-55-7)
- 1-(3-((Benzyloxy)methyl)cyclobutyl)ethan-1-ol (CAS 1940136-07-1)
- 4,4',4''-(2-Phenylethene-1,1,2-triyl)tripyridine (CAS 2015214-98-7)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
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