Description

3-Ethylsulfinylphenylboronic Acid is a specialized organoboron compound featuring a phenylboronic acid core functionalized with an ethylsulfinyl group. This structural motif makes it a valuable building block in modern synthetic chemistry, particularly for cross-coupling reactions that construct complex molecules. It is primarily utilized by researchers and process chemists in the pharmaceutical and agrochemical industries for the development of new active ingredients and advanced materials.

Application

• Suzuki-Miyaura Cross-Coupling Reactions: A key reagent for forming carbon-carbon bonds, essential in synthesizing biaryl structures found in pharmaceuticals and organic electronic materials.
• Pharmaceutical Intermediate: Serves as a critical precursor in the research and development of novel drug candidates, especially those targeting CNS disorders and oncology.
• Agrochemical Synthesis: Used in creating advanced active ingredients for crop protection products, such as herbicides and fungicides.
• Ligand and Catalyst Development: Employed in the synthesis of novel ligands and organometallic catalysts for asymmetric synthesis.
• Material Science Research: A building block for creating organic semiconductors, liquid crystals, and metal-organic frameworks (MOFs).
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes for studying biological processes and enzyme inhibition.

Basic Information

Product Name	3-Ethylsulfinylphenylboronic Acid
CAS No.	1072952-07-8
Molecular Formula	C8H11BO3S
Molecular Weight	198.05 g/mol
Synonyms	(3-Ethylsulfinylphenyl)boronic Acid; 3-(Ethylsulfinyl)benzeneboronic Acid; Boronic acid, B-[3-(ethylsulfinyl)phenyl]-; 3-(Ethylsulfinyl)phenylboronic Acid; 3-Ethanesulfinylphenylboronic Acid
EINECS	Contact for details

Quality Control

Our 3-Ethylsulfinylphenylboronic Acid is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and NMR for structural confirmation, to ensure it meets the high standards required for research and process chemistry. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability, consistency, and compliance with customer specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.