Description

3-(Methylsulfonyl)Phenylboronic Acid Pinacol Ester is a high-purity, protected boronic acid derivative essential for advanced organic synthesis. This compound matters as a key building block in cross-coupling reactions, enabling the precise construction of complex molecules. Pharmaceutical, agrochemical, and advanced materials researchers need it for developing new active ingredients and functional polymers.

Application

• Suzuki-Miyaura Cross-Coupling Reactions: A critical reagent for forming carbon-carbon bonds in the synthesis of biaryl compounds.
• Pharmaceutical Intermediate: Used in the research and development of novel active pharmaceutical ingredients (APIs), particularly those containing a phenylsulfonyl moiety.
• Agrochemical Synthesis: Serves as a building block for creating new herbicides, fungicides, and insecticides with tailored properties.
• Material Science: Employed in the synthesis of organic electronic materials, such as those for OLEDs and semiconductors.
• Ligand and Catalyst Development: Useful for preparing novel ligands and organometallic catalysts used in asymmetric synthesis.
• Chemical Biology Probes: Acts as a versatile handle for bioconjugation and the development of molecular probes.

Basic Information

Product Name	3-(Methylsulfonyl)Phenylboronic Acid Pinacol Ester
CAS No.	1001185-88-1
Molecular Formula	C₁₃H₁₉BO₄S
Molecular Weight	282.16 g/mol
Synonyms	3-(Methylsulfonyl)benzeneboronic Acid Pinacol Ester; [3-(Methanesulfonyl)phenyl]boronic Acid Pinacol Ester; 3-Methanesulfonylphenylboronic Acid Pinacol Ester; 3-(Methylsulfonyl)phenylboronic Acid Neopentyl Glycol Ester (common alternative); 3-(Methylsulfonyl)phenyl-Bpin; B-[3-(Methylsulfonyl)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; 3-(Methylsulfonyl)phenylboronic Acid, Pinacol Ester
EINECS	Contact for details

Quality Control

Our 3-(Methylsulfonyl)Phenylboronic Acid Pinacol Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC, to ensure high chemical purity and identity. Certificates of Analysis (COA) are provided with every shipment and are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed and under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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