Description

3-Chloro-4-isopropoxyphenylboronic acid pinacol ester is a high-purity, organoboron building block essential for modern synthetic chemistry. This compound matters as a key intermediate in Suzuki-Miyaura cross-coupling reactions, enabling the efficient construction of complex biaryl structures. It is primarily needed by pharmaceutical R&D teams and fine chemical manufacturers for developing active pharmaceutical ingredients (APIs), agrochemicals, and advanced materials.

Application

• Pharmaceutical Intermediate: A critical building block in the synthesis of novel drug candidates, particularly those containing complex biaryl motifs.
• Agrochemical Synthesis: Used in the research and production of advanced herbicides, fungicides, and insecticides.
• Material Science: Serves as a monomer or precursor in the development of organic electronic materials, such as OLEDs and semiconductors.
• Chemical Research: A versatile reagent in academic and industrial laboratories for methodology development and complex molecule construction via cross-coupling.
• Ligand & Catalyst Development: Employed in the synthesis of novel bidentate ligands and organometallic catalysts.

Basic Information

Product Name	3-Chloro-4-isopropoxyphenylboronic Acid Pinacol Ester
CAS No.	1260023-79-7
Molecular Formula	C15H22BClO3
Molecular Weight	296.60 g/mol
Synonyms	(3-Chloro-4-isopropoxyphenyl)boronic acid pinacol ester; Pinacol (3-Chloro-4-isopropoxyphenyl)boronate; 3-Chloro-4-isopropoxybenzeneboronic acid pinacol ester; B-(3-Chloro-4-isopropoxyphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; 3-Chloro-4-(1-methylethoxy)benzeneboronic acid pinacol ester; Boronic acid, B-[3-chloro-4-(1-methylethoxy)phenyl]-, 4,4,5,5-tetramethyl-1,3,2-dioxaborolane ester
EINECS	Contact for details

Quality Control

Our 3-Chloro-4-isopropoxyphenylboronic acid pinacol ester is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure high chemical purity and identity. Certificates of Analysis (COA) are provided with each shipment and are available upon request 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). Due to its hygroscopic (moisture-sensitive) nature, the container should be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	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.