3-(Ethylsulfonyl)phenylboronic Acid CAS 845870-47-5
| CAS No. | 845870-47-5 |
| Molecular Formula | C14H21BO4S |
| Molecular Weight | 296.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(Ethylsulfonyl)phenylboronic Acid (CAS 845870-47-5), molecular formula C14H21BO4S and molecular weight 296.19 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-(Ethylsulfonyl)phenylboronic Acid (C14H21BO4S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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.
As a certified reference material (CRM), 3-(Ethylsulfonyl)phenylboronic 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 | C14H21BO4S |
| Molecular Weight | 296.19 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Sulfur Atoms | 1 |
Related Ethylsulfonyl Standards
- 2-(4-(Ethylsulfonyl)phenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1436867-18-3)
- 3-(Ethylsulfonyl)phenylboronic Acid Pinacol Ester (CAS 2096331-73-4)
- 1-(ethylsulfonyl)-4-phenylpiperidine-4-carboxylic acid (CAS 863669-55-0)
- 1-[4-(Ethylsulfonyl)phenyl]piperidine-4-carboxylic acid (CAS 951624-97-8)
- 5-(Ethylsulfonyl)-6-(4-methoxyphenyl)pyridazin-3(2H)-one (CAS 1708269-10-6)
- 8-Acetyl-2-(ethylsulfonyl)-6-methyl-4H-chromen-4-one (CAS 2715284-83-4)
- 1-[4-(Ethylsulfonyl)-2-nitrophenyl]piperidine (CAS 942474-62-6)
- 5-(Ethylsulfonyl)-4-(4-methoxyphenyl)thiazol-2-amine (CAS 1710293-74-5)
Recommended Standards
- 2-Methyl-5-(methylsulfonyl)phenylboronic Acid Pinacol Ester (CAS 909187-44-6)
- 2-chloro-1-[1-(4-chlorophenyl)-2,5-dimethyl-1H-pyrrol-3-yl]propan-1-one (CAS 732292-20-5)
- 3-Chloro-N-[2-(4-chlorophenoxy)ethyl]-2-methylaniline (CAS 356537-28-5)
- 2-[2-(Methanesulfonylmethyl)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2377611-00-0)
- (S)-1-(tert-Butoxycarbonyl)-2-(3-fluorobenzyl)-pyrrolidine-2-carboxylic acid (CAS 1196886-62-0)
- phthalazin-5-amine (CAS 102072-84-4)
- Tert-butyl 3-amino-4-(hydroxymethyl)piperidine-1-carboxylate (CAS 1782754-25-9)
- 1-Benzyl-4-chloro-1H-pyrazolo[3,4-d]pyrimidine (CAS 35877-38-4)
- Spiramycin EP Impurity D (CAS 87708-39-2)
- 1-[(2-phenyl-1,3-oxazol-4-yl)methyl]piperidine-2-carboxylic acid (CAS 1218557-77-7)
- 7-Fluoro-4-methylindoline-2,3-dione (CAS 749240-53-7)
- N-(3-Cyclopropoxy-5-nitropyridin-2-yl)methanesulfonamide (CAS 1243379-69-2)
- 1-Bromo-2-nitro-4-thiocyanatobenzene (CAS 408328-22-3)
- Serpent Peptide (CAS 823202-99-9)
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