(2,3-Difluoro-1,4-phenylene)diboronic acid CAS 1190989-22-0
| CAS No. | 1190989-22-0 |
| Molecular Formula | C6H6B2F2O4 |
| Molecular Weight | 201.73 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.
(2,3-Difluoro-1,4-phenylene)diboronic acid (CAS 1190989-22-0), molecular formula C6H6B2F2O4 and molecular weight 201.73 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of (2,3-Difluoro-1,4-phenylene)diboronic acid (C6H6B2F2O4) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C6H6B2F2O4 |
| Molecular Weight | 201.73 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, 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | F-containing |
Related Difluoro Standards
- (2,5-Difluoro-1,4-phenylene)diboronic acid (CAS 1256358-83-4)
- 2,2-Difluoro-1,3-benzodioxole-5-boronic Acid (CAS 190903-71-0)
- 3,4-Difluoro-5-ethoxyphenylboronic acid (CAS 1162261-96-2)
- 3,4-Difluoro-2-ethoxyphenylboronic acid (CAS 1451391-69-7)
- 2,4-Difluoro-3-methoxy-5-methylphenylboronic acid (CAS 2096331-81-4)
- 2,6-Difluoro-3-ethoxyphenylboronic acid (CAS 849062-00-6)
- 3,5-Difluoro-4-methoxy-2-methylphenylboronic acid (CAS 2096338-65-5)
- 2,2-Difluoro-1,3-benzodioxole-5-carboxylic Acid (CAS 656-46-2)
Recommended Standards
- 4-(Chloromethyl)-2-cyclopentyl-1,3-thiazole (CAS 774158-28-0)
- 2-((4-Chlorobenzyl)thio)ethan-1-amine (CAS 60116-21-4)
- 5-Chloro-2,8-dimethylquinoline (CAS 186670-43-9)
- 2-((2-Chlorobenzyl)thio)ethan-1-amine (CAS 42416-23-9)
- 3-(2-Aminoethyl)-1-methyl-1H-1,2,4-triazol-5-amine (CAS 61012-33-7)
- 2,7-Bis(trifluoromethyl)-9H-carbazole (CAS 1657076-40-8)
- Methyl 5-ethyl-2-isopropyl-1-oxaspiro[2.4]heptane-2-carboxylate (CAS 1558828-74-2)
- 2,2'-Bis(2-chlorophenyl)-4,4',5,5'-tetraphenyl-1,1'-biimidazole (CAS 1707-68-2)
- N-(6-Methyl-4-oxo-1,4-dihydropyrimidin-2-yl)-N-[3-(trifluoromethyl)phenyl]guanidine (CAS 36108-05-1)
- 6-(Trifluoromethyl)quinolin-8-amine (CAS 955413-26-0)
- C0KDL86B2L 67123-97-1 1,2,3,4-Tetrahydroisoquinoline-3-carboxylic acid (1)-1,2,3,4-Tetrahydroisoquinoline-3-carboxylic acid EINECS 266-580-4 UNII-C0KDL86B2L (CAS 67123-97-1)
- 4,4'-Dibromo-3,3'-dimethyl-1,1'-binaphthalene (CAS 74866-25-4)
- Ambroxol Impurity 83 (CAS CATO-C4X-108583)
- Semaglutide impurity 236 (CAS CATO-C4X-2226236)
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