(4-((Methylsulfonyl)methyl)phenyl)boronic acid CAS 959861-32-6
| CAS No. | 959861-32-6 |
| Molecular Formula | C8H11BO4S |
| Molecular Weight | 214.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(4-((Methylsulfonyl)methyl)phenyl)boronic acid (CAS 959861-32-6), molecular formula C8H11BO4S and molecular weight 214.05 g/mol, is a CATO reference standard with documented purity and traceability.
(4-((Methylsulfonyl)methyl)phenyl)boronic acid (C8H11BO4S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
Physical & Chemical Properties
| Molecular Formula | C8H11BO4S |
| Molecular Weight | 214.05 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 3.5 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Sulfur Atoms | 1 |
Related Methylsulfonyl Standards
- (2-((Methylsulfonyl)methyl)phenyl)boronic acid (CAS 123088-60-8)
- 2-Methyl-3-(methylsulfonyl)phenylboronic Acid (CAS 1313617-69-4)
- (3-((Methylsulfonyl)methyl)phenyl)boronic acid (CAS 959861-31-5)
- 2-Methyl-3-(methylsulfonyl)benzoic Acid (CAS 1186663-49-9)
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- 2-Methyl-4-(methylsulfonyl)benzoic acid (CAS 118939-09-6)
- 2-[2-(Methylsulfonyl)phenyl]acetic Acid (CAS 142336-20-7)
- 2-Methyl-5-(methylsulfonyl)benzoic Acid (CAS 151104-37-9)
Recommended Standards
- (4-Methanesulfonyl-2-methylphenyl)boronic acid (CAS 850033-50-0)
- 2,4-Dichloro-5-(1H-imidazol-2-yl)pyridine (CAS 1956334-51-2)
- 1-(3,5-Dichlorophenyl)-1H-1,2,3-triazole (CAS 85862-54-0)
- 1-(2-Bromoethyl)-3,3-difluoropyrrolidine (CAS 1935404-13-9)
- 2-((Diethylamino)methyl)cyclopentan-1-one hydrochloride (CAS 82343-79-1)
- (4AR,6R,7R,7aR)-6-(6-butyramido-9H-purin-9-yl)-2-mercapto-2-oxidotetrahydro-4H-furo[3,2-d][1,3,2]dioxaphosphinin-7-yl butyrate (CAS 152218-23-0)
- Fmoc-D-Agp(Boc)2-OH (CAS 1263045-67-5)
- 4-Fluoro-2,3-dihydro-1H-inden-1-amine hydrochloride (CAS 936220-71-2)
- 3-{5H,6H,7H-pyrrolo[2,1-c][1,2,4]triazol-3-yl}piperidine hydrochloride (CAS 1258651-73-8)
- 4,9-Bis((3,3-dimethyloxiran-2-yl)methoxy)-7H-furo[3,2-g]chromen-7-one (CAS 77063-74-2)
- 5-(2-fluorophenyl)-4-(furan-2-ylmethyl)-4H-1,2,4-triazole-3-thiol (CAS 694460-54-3)
- Ytterbium(II) iodide (CAS 19357-86-9)
- 1-(1-Methyl-1h-imidazol-2-yl)piperidin-3-amine (CAS 1251103-51-1)
- Peptide Impurity (CAS CATO-CPTD788810)
Why CATO?
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