Description

2-Cyanoethylboronic Acid, Pinacol Ester is a protected boronic acid derivative, a crucial building block in modern synthetic chemistry. Its value lies in its stability and reactivity, serving as a versatile intermediate for constructing complex molecular architectures through cross-coupling reactions. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors who require high-purity, reliable synthetic intermediates.

Application

• Pharmaceutical Intermediate: A key 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 requiring specific boron-containing scaffolds.
• Material Science Research: Employed in the creation of organic electronic materials, such as polymers for OLEDs and organic photovoltaics.
• Chemical Biology Probes: Facilitates the synthesis of tagged molecules for studying biological processes and protein interactions.
• Ligand and Catalyst Development: Serves as a starting material for creating novel ligands and organometallic catalysts.
• Custom Synthesis: A fundamental component for contract research organizations (CROs) and fine chemical companies performing bespoke synthesis.

Basic Information

Product Name	2-Cyanoethylboronic Acid, Pinacol Ester
CAS No.	238088-31-8
Molecular Formula	C9H16BNO2
Molecular Weight	181.04 g/mol
Synonyms	2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)acetonitrile; (2-Cyanoethyl)boronic Acid Pinacol Ester; 2-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)ethanenitrile; Pinacol (2-Cyanoethyl)boronate; 2-Cyanoethylboronic Acid Pinanediol Ester (common misnomer); B-(2-Cyanoethyl)boronic Acid Pinacol Ester; 238088-31-8 (CAS Index Name)
EINECS	Contact for details

Quality Control

Our 2-Cyanoethylboronic Acid, Pinacol Ester is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including NMR, HPLC, and GC analysis, to ensure high chemical purity and identity confirmation. Certificates of Analysis (COA) with detailed specifications are provided with every shipment to guarantee traceability and batch-to-batch consistency for your critical R&D and production 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). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) for long-term storage to prevent decomposition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or low-melting solid
Identification (NMR)	Conforms to structure
Purity (HPLC/GC)	≥95% (Typical 97-99%)
Water Content (KF)	≤0.5%

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