(5-Fluoro-2-(methylthio)phenyl)boronic acid CAS 1218790-65-8
| CAS No. | 1218790-65-8 |
| Molecular Formula | C7H8BFO2S |
| Molecular Weight | 186.01 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(5-Fluoro-2-(methylthio)phenyl)boronic acid (CAS 1218790-65-8), molecular formula C7H8BFO2S and molecular weight 186.01 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H8BFO2S, (5-Fluoro-2-(methylthio)phenyl)boronic acid contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 186.01 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
As a certified reference material (CRM), (5-Fluoro-2-(methylthio)phenyl)boronic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H8BFO2S |
| Molecular Weight | 186.01 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.) | 1990 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Fluoro Standards
- (4-Fluoro-3-(methylthio)phenyl)boronic acid (CAS 1451392-39-4)
- 2-Fluoro-3-(methylsulfanyl)phenylboronic acid (CAS 1451392-57-6)
- 6-Fluoro-2-(methylsulfanyl)phenylboronic acid (CAS 1451392-58-7)
- (2-Fluoro-4-(methylthio)phenyl)boronic acid (CAS 957060-84-3)
- (3-Fluoro-4-(methylthio)phenyl)boronic acid (CAS 221030-80-4)
- 2-Fluoro-5-(methylthio)phenylboronic acid (CAS 2121512-51-2)
- 3-Fluoro-5-(methylthio)phenylboronic acid (CAS 2121513-60-6)
- 4-Fluoro-2-(methylthio)phenylboronic acid (CAS 861931-38-6)
Recommended Standards
- 3-Formyl-4-methoxyphenylboronic acid (CAS 121124-97-8)
- 5-Bromo-1-methylpyrazole-4-carbonitrile (CAS 1269293-80-2)
- 2-Bromopyridine-4-carboxaldehyde (CAS 118289-17-1)
- 4-Bromopicolinaldehyde (CAS 131747-63-2)
- 4-(4,5-Dimethyloxazol-2-yl)benzoic acid (CAS 1048918-56-4)
- 4-Bromobenzo[b]thiophene-2-carbaldehyde (CAS 19075-43-5)
- 5-fluoro-1-benzofuran-3-carbaldehyde (CAS 721943-19-7)
- N-Me-D-Lys-OH.HCl (CAS 2044709-87-5)
- tert-Butyl N-{4H,5H,6H,7H-pyrazolo[1,5-a]pyrimidin-3-yl}carbamate (CAS 2091447-06-0)
- 2-Fluoro-5-(2-methoxyphenyl)benzoic acid (CAS 1178303-59-7)
- 3,6-Difluoro-2-methoxyphenylboronic acid pinacol ester (CAS 2121513-59-3)
- 5-Ethyl-2-(3-(4-(4-methylpyridin-2-yl)piperazin-1-yl)propyl)-1-(4-nitrophenyl)-1H-pyrazol-3(2H)-one (CAS 104417-24-5)
- (R)-2-(1-Amino-2-(2,5-dibromophenyl)ethyl)-5-bromophenol, 97% (CAS 1585969-24-9)
- Semaglutide Impurity 150 xTFA (CAS CATO-C4X-2226150)
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