Description

4-Benzyloxy-3,5-Dichlorophenylboronic Acid Pinacol Ester is a high-purity, synthetically valuable boronic ester derivative, widely utilized as a key building block in modern organic synthesis. Its core value lies in providing a protected, air-stable boronic acid functionality that is crucial for precise cross-coupling reactions, enabling the construction of complex molecular architectures. This compound is essential for researchers and process chemists in the pharmaceutical, agrochemical, and advanced materials industries who require reliable, high-quality intermediates for drug discovery and fine chemical production. The product is supplied with a Certificate of Analysis to ensure batch-to-batch consistency and performance.

Application

• Pharmaceutical Intermediate: A critical precursor in Suzuki-Miyaura cross-coupling reactions for synthesizing novel active pharmaceutical ingredients (APIs) and drug candidates.
• Agrochemical Synthesis: Used in the development of advanced herbicides, fungicides, and insecticides by enabling the formation of specific biaryl and heteroaryl structures.
• Material Science Research: Serves as a building block for creating organic electronic materials, such as those used in OLEDs and organic photovoltaics.
• Ligand and Catalyst Development: Employed in the synthesis of sophisticated ligands and organometallic catalysts for asymmetric synthesis.
• Chemical Biology Probes: Utilized to create tagged molecules and probes for studying biological pathways and protein interactions.
• Custom Synthesis and Contract Manufacturing: A reliable starting material for custom synthesis projects and scale-up processes under cGMP or ISO standards.

Basic Information

Product Name	4-Benzyloxy-3,5-Dichlorophenylboronic Acid Pinacol Ester
CAS No.	2121512-17-0
Molecular Formula	C19H21BCl2O3
Molecular Weight	379.09 g/mol
Synonyms	4-(Benzyloxy)-3,5-dichlorobenzeneboronic acid pinacol ester; 3,5-Dichloro-4-(phenylmethoxy)benzeneboronic acid pinacol ester; (4-(Benzyloxy)-3,5-dichlorophenyl)boronic acid pinacol ester; B-(4-(Benzyloxy)-3,5-dichlorophenyl)boronic acid pinacol ester; 4-Benzyloxy-3,5-dichlorophenylboronic acid neopentyl glycol ester (common alternative); PINACOL 4-BENZYLOXY-3,5-DICHLOROBENZENEBORONATE; CAS 2121512-17-0
EINECS	Contact for details

Quality Control

Our 4-Benzyloxy-3,5-Dichlorophenylboronic 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 purity and chemical identity. We provide a comprehensive Certificate of Analysis (COA) with each shipment, detailing all specifications and test results. Our quality commitment aligns with the standards required for pharmaceutical R&D and fine chemical synthesis.

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); therefore, containers must be kept tightly sealed and may require storage under an inert atmosphere for long-term preservation. Keep away from heat and incompatible materials.

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.