Description

5-(Ethoxycarbonyl)Thiophen-3-Ylboronic Acid is a high-purity boronic acid derivative, a crucial building block in modern synthetic chemistry. Its primary value lies in enabling efficient Suzuki-Miyaura cross-coupling reactions, a cornerstone method for constructing complex organic molecules. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and advanced materials sectors who require reliable, high-quality intermediates for drug discovery and specialty chemical synthesis.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of active pharmaceutical ingredients (APIs), particularly for compounds containing thiophene scaffolds.
• Agrochemical Synthesis: Used in the creation of novel herbicides, fungicides, and insecticides that require specific heterocyclic architectures.
• Material Science Research: Serves as a precursor for organic electronic materials, such as conductive polymers and organic light-emitting diodes (OLEDs).
• Chemical Biology: Employed in the synthesis of molecular probes and bioconjugates for studying biological processes.
• Catalyst & Ligand Development: Acts as a starting material for creating novel ligands and catalysts used in transition metal catalysis.
• Custom Synthesis & Contract Manufacturing: A vital component for custom synthesis houses serving the fine chemical and life science industries.

Basic Information

Product Name	5-(Ethoxycarbonyl)Thiophen-3-Ylboronic Acid
CAS No.	957121-19-6
Molecular Formula	C7H9BO4S
Molecular Weight	199.02 g/mol
Synonyms	3-Borono-5-(ethoxycarbonyl)thiophene; 5-(Ethoxycarbonyl)-3-thienylboronic Acid; 3-Thiopheneboronic acid, 5-(ethoxycarbonyl)-; (5-Ethoxycarbonylthiophen-3-yl)boronic acid; Thiophene-3-boronic acid, 5-ethoxycarbonyl-; 5-Carbethoxy-3-thienylboronic Acid; Ethyl 5-borono-3-thiophenecarboxylate
EINECS	Contact for details

Quality Control

Our 5-(Ethoxycarbonyl)Thiophen-3-Ylboronic 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 consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to support your quality assurance and regulatory 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 powder or crystalline solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%

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