Description

2-Ethyl-5-Methoxyphenylboronic Acid is a versatile organoboron compound widely utilized as a key building block in modern synthetic chemistry. Its primary value lies in its role as a coupling partner in Suzuki-Miyaura cross-coupling reactions, enabling the efficient construction of complex biaryl structures. This high-purity intermediate is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors, particularly for developing active pharmaceutical ingredients (APIs) and novel chemical entities.

Application

• Pharmaceutical Intermediate: A critical precursor in the synthesis of complex drug molecules and active pharmaceutical ingredients (APIs) via palladium-catalyzed cross-coupling reactions.
• Agrochemical Synthesis: Used in the research and development of novel herbicides, fungicides, and insecticides requiring specific biphenyl or heterobiaryl scaffolds.
• Material Science Research: Serves as a building block for creating organic electronic materials, such as those used in OLEDs (Organic Light-Emitting Diodes) and organic semiconductors.
• Ligand and Catalyst Development: Employed in the preparation of specialized ligands for catalysis and metal-organic frameworks (MOFs).
• Chemical Biology & Proteomics: Utilized in the synthesis of molecular probes and bioconjugation reagents for studying biological systems.
• Custom Synthesis & Contract Manufacturing: A valuable starting material for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) serving global clients.

Basic Information

Product Name	2-Ethyl-5-Methoxyphenylboronic Acid
CAS No.	852946-98-6
Molecular Formula	C9H13BO3
Molecular Weight	180.01 g/mol
Synonyms	(2-Ethyl-5-methoxyphenyl)boronic acid; 2-Ethyl-5-methoxybenzeneboronic acid; 5-Methoxy-2-ethylbenzeneboronic acid; Boronic acid, B-(2-ethyl-5-methoxyphenyl)-; 852946-98-6; 2-Ethyl-5-methoxy phenylboronic acid; 2-Ethyl-5-methoxy-Benzeneboronic Acid
EINECS	Contact for details

Quality Control

Our 2-Ethyl-5-Methoxyphenylboronic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and FTIR, to ensure high chemical purity and consistency. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every 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 area at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Heavy Metals	≤ 20 ppm

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