Description

Bis(Pinacolato)Diboron CAS NO 73183-34-3 is a high-purity, versatile organoboron reagent widely used as a key coupling partner in Suzuki-Miyaura cross-coupling reactions. Its primary value lies in enabling the efficient and selective formation of carbon-boron bonds, a critical step in synthesizing complex pharmaceutical intermediates and advanced organic materials. This compound is essential for R&D chemists and production facilities in the pharmaceutical, agrochemical, and material science industries seeking reliable, high-quality building blocks for their synthetic workflows.

Application

• Pharmaceutical Intermediate Synthesis: A crucial reagent for constructing biaryl and heterobiaryl motifs found in active pharmaceutical ingredients (APIs).
• Agrochemical Development: Used in the synthesis of novel herbicides, fungicides, and insecticides requiring specific boron-containing structures.
• Material Science & OLEDs: Serves as a building block for creating organic light-emitting diode (OLED) materials and other advanced functional polymers.
• Academic & Industrial R&D: A staple reagent in medicinal chemistry and process chemistry for library synthesis and route scouting.
• Catalyst & Ligand Preparation: Employed in the synthesis of novel boron-based catalysts and supporting ligands for transition metal catalysis.
• Fine Chemical Production: Facilitates the scalable production of complex, high-value specialty chemicals.

Basic Information

Product Name	Bis(Pinacolato)Diboron
CAS No.	73183-34-3
Molecular Formula	C12H24B2O4
Molecular Weight	253.94 g/mol
Synonyms	4,4,4',4',5,5,5',5'-Octamethyl-2,2'-bi(1,3,2-dioxaborolane); Bispinacolatodiboron; Pinacol Diboron; Diboron Pinacolate; Bis(pinacolato)diboron; B2Pin2; B2(pin)2; Diboronic Acid Pinacol Ester
EINECS	Contact for details

Quality Control

Our Bis(Pinacolato)Diboron is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes rigorous analytical testing, including NMR, HPLC, and elemental analysis, to confirm identity and purity. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area 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) for prolonged use or storage to maintain optimal purity and reactivity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	136 - 140 °C
Heavy Metals	< 10 ppm

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