3-(Methylsulfonyl)phenylboronic Acid CAS 373384-18-0
| CAS No. | 373384-18-0 |
| Molecular Formula | C7H9BO4S |
| Molecular Weight | 200.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, 3-(Methylsulfonyl)phenylboronic Acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 200.02 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
3-(Methylsulfonyl)phenylboronic Acid (CAS 373384-18-0) is a high-purity analytical reference standard with the molecular formula C7H9BO4S and a molecular weight of 200.02 g/mol.
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.
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 | C7H9BO4S |
| Molecular Weight | 200.02 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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.) | 2025 |
| Sulfur Atoms | 1 |
Related Methylsulfonyl Standards
- (2-(Methylsulfonyl)phenyl)boronic acid (CAS 330804-03-0)
- 2-(Methylsulfonyl)benzoic acid, 98% (CAS 33963-55-2)
- 2-(Methylsulfonyl)isonicotinamide (CAS 1820707-92-3)
- 1-(2-(Methylsulfonyl)pyrimidin-5-yl)ethanone (CAS 87573-83-9)
- 6-(Methylsulfonyl)nicotinamide (CAS 845875-80-1)
- 2-methylsulfonyl-1,2,5-thiadiazolidine 1,1-dioxide (CAS 67104-99-8)
- (4-Methyl-3-(methylsulfonyl)phenyl)methanol (CAS 1186519-61-8)
- (S)-1-(4-(Methylsulfonyl)phenyl)ethan-1-ol (CAS 1212155-96-8)
Recommended Standards
- 2-iodo-1-methoxypropane (CAS 22461-49-0)
- 3,4-dichloro benzoyl nitrile (CAS 35022-44-7)
- 2,6-Dichloropyrido[2,3-b]pyrazine (CAS 70395-76-5)
- 3,5-Dichlorobenzoyl Cyanide (CAS 99567-74-5)
- 2-((Methylsulfonyl)methyl)pyrimidine-4,6-diol (CAS 944059-00-1)
- 3-(Aminomethyl)-4,6-dimethyl-1,2,3,4-tetrahydro-4lambda5-pyridin-4-one hydrochloride (CAS 1173081-96-5)
- Diethyl (E)-(1,1-difluoro-2-hydroxy-4-phenylbut-3-en-1-yl)phosphonate (CAS 1041194-07-3)
- (R)-2-((Trifluoromethoxy)methyl)pyrrolidine hydrochloride (CAS 1286761-89-4)
- 5-(3,5-Dichlorophenyl)furan-2-carboxylic acid, 97% (CAS 54023-00-6)
- 2-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)-3,5-dibromobenzoic acid (CAS 1343155-00-9)
- 2-[1-(1-Cyclohexen-1-yl)ethenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 306775-14-4)
- 2,4,6-Trimethoxyphenylboronic acid (CAS 135159-25-0)
- Resorcinol dibenzoate (CAS 94-01-9)
- Semaglutide impurity 24 (CAS CATO-C4X-222624)
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