Description

3-Methoxyphenylboronic Acid Pinacol Ester is a high-purity, protected boronic acid derivative essential for modern synthetic chemistry. Its core value lies in providing a stable, air- and moisture-tolerant reagent for critical carbon-carbon bond-forming reactions, ensuring reliable yields and simplified handling. This compound is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials industries for constructing complex molecular architectures.

Application

• Suzuki-Miyaura Cross-Coupling Reactions: A key building block for introducing the 3-methoxyphenyl moiety into biaryl and heterobiaryl systems, crucial for pharmaceutical intermediates and functional materials.
• Pharmaceutical Intermediate Synthesis: Used in the research and production of active pharmaceutical ingredients (APIs) and drug candidates, particularly those requiring specific aryl ether functionalities.
• Agrochemical Development: Serves as a precursor in synthesizing novel herbicides, fungicides, and insecticides where the methoxy-substituted phenyl group imparts desired biological activity.
• Ligand and Catalyst Preparation: Employed in the synthesis of specialized ligands for catalysis and organometallic complexes.
• Material Science Research: Used to create organic semiconductors, liquid crystals, and polymers with tailored electronic and optical properties.
• Chemical Biology & Proteomics: Acts as a versatile handle for bioconjugation and the development of molecular probes.

Basic Information

Product Name	3-Methoxyphenylboronic Acid Pinacol Ester
CAS No.	325142-84-5
Molecular Formula	C₁₃H₁₉BO₃
Molecular Weight	234.10 g/mol
Synonyms	(3-Methoxyphenyl)boronic acid pinacol ester; 3-Methoxybenzeneboronic acid pinacol ester; 2-(3-Methoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; 3-Methoxyphenylboronic acid, pinacol cyclic ester; 3-Methoxybenzeneboronic acid, pinacol cyclic ester; 3-Methoxyphenyl-Bpin; m-Methoxyphenylboronic acid pinacol ester
EINECS	Contact for details

Quality Control

Our 3-Methoxyphenylboronic Acid Pinacol Ester is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and GC analysis, to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment 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); keep the container tightly sealed 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 solid
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥97.0%
Purity (GC)	≥98.0%
Water Content (KF)	≤0.5%

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