Description

2-Methylthiophene-3-Boronic Acid Pinacol Ester is a high-purity organoboron building block essential for modern synthetic chemistry. This compound is a critical reagent in cross-coupling reactions, enabling the efficient construction of complex heterocyclic molecules. It is primarily utilized by researchers and process chemists in the pharmaceutical, agrochemical, and advanced materials industries for drug discovery and fine chemical synthesis.

Application

• Suzuki-Miyaura Cross-Coupling Reactions: A key reagent for forming carbon-carbon bonds in the synthesis of biaryl and heteroaryl compounds.
• Pharmaceutical Intermediates: Used in the research and development of active pharmaceutical ingredients (APIs), particularly those containing functionalized thiophene cores.
• Agrochemical Synthesis: Serves as a building block for creating novel herbicides, fungicides, and insecticides with tailored properties.
• Material Science & OLED Development: Employed in the synthesis of organic semiconductors, conductive polymers, and light-emitting materials for electronic devices.
• Ligand & Catalyst Preparation: Useful for modifying ligands and creating novel organometallic catalysts for specialized reactions.
• Chemical Biology & Probe Development: Facilitates the synthesis of molecular probes and labeled compounds for biochemical research.

Basic Information

Product Name	2-Methylthiophene-3-Boronic Acid Pinacol Ester
CAS No.	910553-12-7
Molecular Formula	C11H17BO2S
Molecular Weight	224.13 g/mol
Synonyms	2-Methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene; (2-Methylthiophen-3-yl)boronic acid pinacol ester; 3-Borono-2-methylthiophene pinacol ester; 2-Methyl-3-thienylboronic acid pinacol ester; Pinacol 2-Methylthiophene-3-boronate; 910553-12-7; Thiophene-3-boronic acid, 2-methyl-, 1,1-dimethylethyl ester (related); B-(2-Methyl-3-thienyl)boronic acid pinacol ester
EINECS	Contact for details

Quality Control

Every batch of our 2-Methylthiophene-3-Boronic Acid Pinacol Ester is produced and tested under strict quality management protocols to ensure consistency and reliability for your critical applications. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing purity, identity, and impurity profiles. Our quality systems are designed to meet the stringent requirements of cGMP and ISO standards for research and development use.

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). 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 decomposition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	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.