2,4-Difluoro-3-methylbenzeneboronic acid pinacol ester, 97% CAS 1351985-05-1
| CAS No. | 1351985-05-1 |
| Molecular Formula | C13H17BF2O2 |
| Molecular Weight | 254.08 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.
2,4-Difluoro-3-methylbenzeneboronic acid pinacol ester, 97% (CAS 1351985-05-1), molecular formula C13H17BF2O2 and molecular weight 254.08 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,4-Difluoro-3-methylbenzeneboronic acid pinacol ester, 97% (C13H17BF2O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 4.5, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 254.08 g/mol, it falls into the medium-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C13H17BF2O2 |
| Molecular Weight | 254.08 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | F-containing |
Related Difluoro Standards
- 2-(3,4-Difluoro-2-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1025707-97-4)
- 2,5-Difluoro-6-methylbenzeneboronic acid, pinacol ester (CAS 1025707-98-5)
- 2,5-Difluoro-4-methylphenylboronic acid pinacol ester (CAS 1116681-97-0)
- 2-(2,3-Difluoro-4-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1116681-99-2)
- 2,6-Difluoro-4-methylphenylboronic Acid Pinacol Ester (CAS 1355011-22-1)
- 2-(2,4-Difluoro-5-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1427407-71-3)
- 2-(2,4-Difluoro-6-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2699738-08-2)
- 2-(2,6-Difluoro-3-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2246738-41-8)
Recommended Standards
- 7-Bromo-2-methyl-1,2,3,4-tetrahydroisoquinoline-1,3-dione (CAS 1341602-23-0)
- 1-Acetyl-2-bromoindolin-3-one (CAS 132993-66-9)
- 6-Bromo-5-methylindole-3-carboxylic Acid (CAS 1360883-72-2)
- 4-Bromo-1-methyl-1H-indole-7-carboxylic acid (CAS 1312610-77-7)
- (1-(4-(Trifluoromethyl)phenyl)ethyl)hydrazine (CAS 1016878-44-6)
- 2-(Cyanomethyl)-5-fluorobenzimidazole (CAS 115201-20-2)
- 2-(((1-Isopropyl-3-methyl-1h-pyrazol-4-yl)methyl)amino)ethan-1-ol (CAS 1171593-71-7)
- 1-[(3-Chlorophenyl)methyl]-3-nitro-1h-pyrazole (CAS 957478-42-1)
- 5-methoxy-2,3-dihydro-1H-isoindol-1-one (CAS 22246-66-8)
- (R)-3,7-Dimethyloct-6-en-1-yl acetate (CAS 20425-54-1)
- 2-Bromo-4-(5,7-dimethyl-1H-benzo[d]imidazol-2-yl)-N,N-dimethylaniline (CAS 1706451-26-4)
- 2-Methylcyclopropanemethanol, mixture of cis and trans (CAS 6077-72-1)
- (2S,3R,4S,5S,6R)-2-(((2R,3S,4R,5R,6S)-6-((6-chloro-1H-indol-3-yl)oxy)-4,5-dihydroxy-2-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (CAS 425427-87-8)
- Insulin Glargine Metabolite M2 (CAS CATO-CPTD788867)
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