Description

2,2’-(2,5-Dimethyl-1,4-Phenylene)Bis(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolane) is a high-purity, bifunctional boronic ester derivative, serving as a critical building block in advanced organic synthesis. Its value lies in its stability and reactivity as a key monomer for Suzuki-Miyaura cross-coupling reactions, enabling the precise construction of complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and materials science industries, particularly for developing active pharmaceutical ingredients (APIs), organic electronic materials, and specialty polymers.

Application

• Pharmaceutical Intermediate: A key monomer for constructing complex biaryl and heterobiaryl structures via Suzuki coupling in API synthesis.
• Organic Electronic Materials: Used in the synthesis of conjugated polymers and small molecules for OLEDs, OFETs, and organic photovoltaics.
• Agrochemical Synthesis: Serves as a building block for creating novel active ingredients with specific biological activity.
• Ligand and Catalyst Development: Employed in the preparation of novel bidentate ligands and metal-organic frameworks (MOFs).
• Polymer Chemistry: Acts as a co-monomer for synthesizing specialty polymers with tailored properties, such as boron-containing materials.
• Chemical Research & Development: A versatile reagent for academic and industrial R&D in synthetic methodology and new material discovery.

Basic Information

Product Name	2,2’-(2,5-Dimethyl-1,4-Phenylene)Bis(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolane)
CAS No.	303006-89-5
Molecular Formula	C24H40B2O4
Molecular Weight	414.19 g/mol
Synonyms	1,4-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,5-dimethylbenzene; 2,5-Dimethyl-1,4-phenylenebis(boronic acid pinacol ester); 2,5-Dimethylbenzene-1,4-diboronic acid bis(pinacol ester); 1,4-Di(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,5-dimethylbenzene; 2,5-Dimethyl-p-phenylenebis(boronic acid pinacol ester); DMPDBA Pinacol Ester; 2,5-Dimethyl-1,4-benzenediboronic Acid Pinacol Ester
EINECS	Contact for details

Quality Control

Our 2,2’-(2,5-Dimethyl-1,4-Phenylene)Bis(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolane) is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, NMR (1H, 13C, 11B), and GC analysis, to confirm identity, purity, and the absence of critical impurities. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting all relevant specifications. We support compliance with REACH and other global regulatory frameworks.

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). This product is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (e.g., nitrogen or argon) when opening to prevent degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥97.0%
Purity (GC)	≥98.0%
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.