Description

Benzoic Acid, 4-Cyano-3-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-, Ethyl Ester is a high-value, multifunctional chemical building block that combines a benzoate ester core with both nitrile and boronic ester functional groups. This unique structure makes it a critical intermediate for advanced organic synthesis, particularly in the development of pharmaceuticals and functional materials. It is primarily sought after by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for constructing complex molecular architectures.

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 research and development of advanced crop protection agents and herbicides.
• Material Science Research: Serves as a monomer or functional additive in the development of specialty polymers, liquid crystals, and organic electronic materials.
• Chemical Biology & Proteomics: Employed as a building block for creating molecular probes, enzyme inhibitors, and bioconjugation reagents.
• Organic Synthesis: Utilized in various palladium-catalyzed cross-coupling reactions and as a versatile synthon for introducing aromatic, cyano, and boronate ester functionalities.

Basic Information

Product Name	Benzoic Acid, 4-Cyano-3-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-, Ethyl Ester
CAS No.	1126479-87-5
Molecular Formula	C₁₆H₂₀BNO₄
Molecular Weight	301.15 g/mol
Synonyms	Ethyl 4-Cyano-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoate; 2-(4-Cyano-3-ethoxycarbonylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane; 4-Cyano-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzoic Acid Ethyl Ester; 3-Borono-4-cyanobenzoic Acid Ethyl Ester, Pinacol Ester; 4-Cyano-3-pinacolatoboryl Benzoic Acid Ethyl Ester; 1126479-87-5; Ethyl 3-Borono-4-cyanobenzoate Pinacol Ester
EINECS	Contact for details

Quality Control

Our Benzoic Acid, 4-Cyano-3-(4,4,5,5-Tetramethyl-1,3,2-Dioxaborolan-2-Yl)-, Ethyl Ester is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly 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
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.