Description

5-Ethoxycarbonylthiophene-2-Boronic Acid is a high-value organoboron building block, specifically a thiophene-substituted boronic acid derivative. This compound is essential for modern synthetic chemistry, enabling the precise construction of complex molecular architectures through cross-coupling reactions. It is primarily sought after by research scientists and process chemists in the pharmaceutical, agrochemical, and advanced materials industries for the development of novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: A key precursor in Suzuki-Miyaura cross-coupling reactions for synthesizing novel drug candidates, particularly those containing thiophene heterocycles.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides with tailored biological activity.
• Material Science Research: Serves as a building block for creating conjugated polymers and organic electronic materials for applications in OLEDs and sensors.
• Chemical Biology Probes: Utilized in the synthesis of labeled compounds and molecular probes for biochemical and diagnostic research.
• Catalyst Ligand Development: Acts as a starting material for synthesizing novel ligand systems used in homogeneous catalysis.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs and fine chemical companies for custom synthesis projects requiring specific boronic acid derivatives.

Basic Information

Product Name	5-Ethoxycarbonylthiophene-2-Boronic Acid
CAS No.	1093120-64-9
Molecular Formula	C7H9BO4S
Molecular Weight	200.02 g/mol
Synonyms	2-Borono-5-ethoxycarbonylthiophene; 5-(Ethoxycarbonyl)thiophene-2-boronic acid; Thiophene-2-boronic acid, 5-(ethoxycarbonyl)-; Ethyl 5-boronothiophene-2-carboxylate; 5-Carbethoxy-2-thienylboronic acid; (5-Ethoxycarbonyl-2-thienyl)boronic acid; 2-Thiopheneboronic acid, 5-(ethoxycarbonyl)-
EINECS	Contact for details

Quality Control

Our 5-Ethoxycarbonylthiophene-2-Boronic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and elemental analysis, to ensure high purity and consistent performance for critical synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

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). This product is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere (argon/nitrogen) for long-term storage and to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Assay (NMR)	≥ 95.0%
Water Content (KF)	≤ 1.0%

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