Description

4-Methoxyphenylboronic Acid is a versatile organoboron compound widely used as a key building block in modern synthetic chemistry. Its primary value lies in its role as a crucial coupling partner in Suzuki-Miyaura cross-coupling reactions, enabling the efficient formation of carbon-carbon bonds. This high-purity intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors, where it is used to synthesize complex molecules and functional polymers.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, particularly for compounds containing biaryl motifs.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides through palladium-catalyzed cross-coupling methodologies.
• Liquid Crystal & OLED Materials: Serves as a building block for creating advanced organic electronic materials, including charge-transport layers and emissive compounds.
• Polymer & Resin Chemistry: Incorporated into specialty polymers and resins to modify properties such as thermal stability, solubility, and mechanical strength.
• Chemical Research & Development: A standard reagent in academic and industrial R&D labs for exploring new catalytic processes and constructing molecular libraries.
• Sensor & Diagnostic Agent Development: Utilized in the synthesis of molecular probes and sensing materials due to its reactive boronic acid functional group.

Basic Information

Product Name	4-Methoxyphenylboronic Acid
CAS No.	5720-07-0
Molecular Formula	C7H9BO3
Molecular Weight	151.96 g/mol
Synonyms	(4-Methoxyphenyl)boronic Acid; p-Anisylboronic Acid; 4-Methoxybenzeneboronic Acid; p-Methoxyphenylboronic Acid; B-(4-Methoxyphenyl)boronic Acid; 4-Methoxy-Benzeneboronic Acid; 4-MOPBA; 4-Anisylboronic Acid
EINECS	227-246-7

Quality Control

Our 4-Methoxyphenylboronic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and titration, to ensure high purity and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical parameters. Our quality commitment aligns with cGMP principles where applicable, supporting its use in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and should be handled under dry conditions, such as in a nitrogen or argon atmosphere, for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥97.0%
Water Content (KF)	≤1.0%
Melting Point	160°C - 170°C

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