2,3-Difluoro-5-methylphenylboronic acid CAS 934247-79-7
| CAS No. | 934247-79-7 |
| Molecular Formula | C7H7BF2O2 |
| Molecular Weight | 171.94 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,3-Difluoro-5-methylphenylboronic acid is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2,3-Difluoro-5-methylphenylboronic acid (CAS 934247-79-7) is a high-purity analytical reference standard with the molecular formula C7H7BF2O2 and a molecular weight of 171.94 g/mol.
Structurally, 2,3-Difluoro-5-methylphenylboronic acid (C7H7BF2O2) 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 171.94 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.
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.
CATO manufactures 2,3-Difluoro-5-methylphenylboronic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H7BF2O2 |
| Molecular Weight | 171.94 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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
- (4,5-Difluoro-2-methylphenyl)boronic acid (CAS 1416244-48-8)
- 2,6-Difluoro-3-methylphenylboronic acid (CAS 1586045-40-0)
- (2,4-Difluoro-3-methylphenyl)boronic acid (CAS 1619980-13-0)
- 3,5-Difluoro-4-methylphenylboronic Acid (CAS 1621332-09-9)
- (3,6-Difluoro-2-methylphenyl)boronic acid (CAS 1884277-68-2)
- (2,4-Difluoro-5-methylphenyl)boronic acid (CAS 900175-09-9)
- (2,5-Difluoro-4-methylphenyl)boronic acid (CAS 872219-20-0)
- 2,3-Difluoro-4-methylphenylboronic acid (CAS 508235-16-3)
Recommended Standards
- 2,6-Difluoro-4-methylphenylboronic acid (CAS 2246867-26-3)
- [(3,4-Difluorophenyl)methyl]boronic acid (CAS 2246751-44-8)
- 3,4-Difluoro-2-methylphenylboronic acid (CAS 2121514-75-6)
- [(2,6-Difluorophenyl)methyl]boronic acid (CAS 2246550-95-6)
- Nemonapride (CAS 75272-39-8)
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- N-(2-(Phenylsulfonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)cyclopentanecarboxamide (CAS 954612-89-6)
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- Methyl 3-acetyl-5-bromo-2-methylbenzoate (CAS 1638759-86-0)
- Thymopoietin II Peptide Fragment (CAS 56795-64-3)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com