Description

4-Cyanobenzo[B]Thiophen-2-Ylboronic Acid is a high-purity, advanced pharmaceutical intermediate and versatile building block in organic synthesis. Its core value lies in its boronic acid functional group, which is essential for critical carbon-carbon bond-forming reactions like the Suzuki-Miyaura cross-coupling. This compound is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and materials science industries for creating novel, complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates, particularly those containing the benzothiophene scaffold.
• Suzuki-Miyaura Cross-Coupling Reagent: Enables the efficient formation of biaryl and heterobiaryl structures, a fundamental transformation in medicinal chemistry and material science.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides with novel modes of action.
• Organic Electronic Materials: Serves as a building block for π-conjugated systems in the research of organic light-emitting diodes (OLEDs) and semiconductors.
• Ligand Synthesis: Can be utilized to create novel ligands for catalysis and metal-organic frameworks (MOFs).
• Chemical Biology Probes: Employed in the design and synthesis of molecular probes for studying biological processes.

Basic Information

Product Name	4-Cyanobenzo[B]Thiophen-2-Ylboronic Acid
CAS No.	1119899-36-3
Molecular Formula	C9H6BNO2S
Molecular Weight	203.03 g/mol
Synonyms	2-(4-Cyanobenzo[b]thien-2-yl)boronic Acid; (4-Cyanobenzo[b]thiophen-2-yl)boronic Acid; 4-Cyanobenzo[b]thiophene-2-boronic Acid; 4-Cyanobenzo[b]thien-2-ylboronic Acid; 2-Borono-4-cyanobenzo[b]thiophene; 4-Cyano-2-benzothienylboronic Acid; 4-CN-BT-2-BA
EINECS	Contact for details

Quality Control

Every batch of 4-Cyanobenzo[B]Thiophen-2-Ylboronic Acid is manufactured under strict quality management systems and undergoes rigorous analytical testing to ensure identity, purity, and consistency. Our standard grade meets high-purity requirements for research and development. A comprehensive Certificate of Analysis (COA) detailing purity (typically by HPLC), identity (by NMR and IR), and impurity profile is provided with each shipment to ensure traceability and compliance with your project specifications.

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 powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥95% (Standard Grade)
Water Content (KF)	≤1.0%

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