Description

4-Ethyl-4H-Thieno[3,2-B]Pyrrole-5-Carboxylic Acid is a high-purity heterocyclic carboxylic acid building block of significant interest in advanced organic synthesis. Its fused thienopyrrole core and functional carboxylic acid group make it a valuable precursor for constructing complex molecular architectures. This compound is primarily sought by research and development teams in the pharmaceutical and agrochemical sectors for the synthesis of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon for the development of novel drug candidates, particularly in therapeutic areas targeting specific enzymes or receptors.
• Agrochemical Research: Used in the synthesis of new herbicides, fungicides, or insecticides, leveraging its unique heterocyclic structure for bioactivity.
• Material Science Precursor: Serves as a building block for organic electronic materials, such as conductive polymers or organic semiconductors, due to the electron-rich thienopyrrole system.
• Chemical Synthesis Reagent: Employed in academic and industrial R&D for constructing complex heterocyclic compounds and exploring new chemical spaces.
• Ligand and Catalyst Development: The carboxylic acid functionality allows for derivatization into chelating ligands for metal catalysis or coordination chemistry applications.

Basic Information

Product Name	4-Ethyl-4H-Thieno[3,2-B]Pyrrole-5-Carboxylic Acid
CAS No.	924643-45-8
Molecular Formula	C9H9NO2S
Molecular Weight	195.24 g/mol
Synonyms	4-Ethyl-4H-thieno[3,2-b]pyrrole-5-carboxylic acid; 4H-Thieno[3,2-b]pyrrole-5-carboxylic acid, 4-ethyl-; 4-Ethyl-4,7-dihydro-5H-thieno[3,2-b]pyrrole-5-carboxylic acid; 4-Ethyl-4,5-dihydrothieno[3,2-b]pyrrole-5-carboxylic acid; 4-Ethyl-4H-thieno[3,2-b]pyrrole-5-carboxylic acid (CAS 924643-45-8); 4-Ethyl-4,7-dihydro-5H-thieno[2,3-b]pyrrole-5-carboxylic acid (isomer reference); Thienopyrrole-5-carboxylic acid derivative
EINECS	Contact for details

Quality Control

Our 4-Ethyl-4H-Thieno[3,2-B]Pyrrole-5-Carboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high purity and consistent performance, meeting the stringent requirements of research and process development. A comprehensive Certificate of Analysis (COA) detailing purity, identity, 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 area at room temperature (15-25°C). The compound is stable under these conditions but should be kept away from strong acids and organic solvents. For long-term storage, consider inert atmosphere conditions to prevent potential oxidation.

Specification

Item	Specification
Appearance	White to off-white 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.