Description

4-(Methylthio)Phenylboronic Acid Pinacolate is a high-purity organoboron reagent, specifically a protected boronic acid derivative. This compound is a critical building block in modern synthetic chemistry, valued for its enhanced stability and handling properties compared to the free boronic acid. It is primarily sought after by research and development teams in the pharmaceutical and agrochemical sectors for constructing complex molecular architectures via cross-coupling reactions.

Application

• Pharmaceutical Intermediate: A key precursor in Suzuki-Miyaura cross-coupling reactions for synthesizing novel active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and insecticides requiring specific aryl-thioether motifs.
• Material Science Research: Serves as a monomer or building block for creating organic electronic materials, such as those used in OLEDs and semiconductors.
• Ligand and Catalyst Development: Employed in the synthesis of specialized ligands for catalysis and metal-organic frameworks (MOFs).
• Chemical Biology Probes: Utilized in the design and synthesis of molecular probes for studying biological processes and target engagement.

Basic Information

Product Name	4-(Methylthio)Phenylboronic Acid Pinacolate
CAS No.	190788-58-0
Molecular Formula	C13H19BO2S
Molecular Weight	250.16 g/mol
Synonyms	4-(Methylthio)benzeneboronic Acid Pinacol Ester; [4-(Methylsulfanyl)phenyl]boronic Acid Pinacol Ester; 4-(Methylmercapto)phenylboronic Acid Pinacol Ester; 4-Methylthiophenylboronic Acid Pinacol Ester; 4-(Methylthio)phenyl-B(pin); 4-MTBP; B-[4-(Methylthio)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
EINECS	Contact for details

Quality Control

Our 4-(Methylthio)Phenylboronic Acid Pinacolate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

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 should be handled under an inert atmosphere (e.g., nitrogen or argon) for long-term storage and to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%

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