Description

3-Ethylphenylboronic 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 makes it an essential intermediate for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors who require high-purity, reliable synthetic precursors.

Application

• Pharmaceutical Intermediate: A critical building block for synthesizing active pharmaceutical ingredients (APIs) and drug candidates through cross-coupling reactions.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides requiring specific biphenyl or substituted phenyl structures.
• Ligand & Catalyst Development: Serves as a precursor for creating specialized ligands and catalysts used in asymmetric synthesis and other catalytic processes.
• Material Science Research: Employed in the synthesis of organic electronic materials, such as those for OLEDs and conductive polymers.
• Chemical Research & Development: A fundamental reagent in academic and industrial R&D labs for constructing complex organic molecules and exploring new synthetic pathways.
• Fine Chemical Production: Integral to the manufacture of specialty chemicals, dyes, and pigments where specific aryl group incorporation is needed.

Basic Information

Product Name	3-Ethylphenylboronic Acid
CAS No.	90555-65-0
Molecular Formula	C8H11BO2
Molecular Weight	149.98 g/mol
Synonyms	(3-Ethylphenyl)boronic Acid; m-Ethylphenylboronic Acid; 3-Ethylbenzeneboronic Acid; Boronic acid, B-(3-ethylphenyl)-; 3-Ethyl-Benzeneboronic Acid; 1-Ethyl-3-boronicacidbenzene; 3-Ethylphenylboronic acid (contains varying amounts of Anhydride)
EINECS	Contact for details

Quality Control

Our 3-Ethylphenylboronic Acid is manufactured under strict quality management protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, identity, and impurity profiles. Our quality systems are designed to meet the stringent requirements of GMP and ISO standards for advanced chemical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation. Keep away from heat and incompatible materials.

Specification

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

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