Description

4,5,6,7-Tetrahydro-Benzo[B]Thiophene-2-Carboxylic Acid is a versatile heterocyclic carboxylic acid derivative that serves as a critical building block in advanced organic synthesis. Its unique fused-ring thiophene structure makes it a valuable intermediate for creating complex molecules with specific electronic and steric properties. This compound is primarily sought after by research institutions and pharmaceutical companies engaged in the development of novel active pharmaceutical ingredients (APIs) and functional materials.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting the central nervous system (CNS) and other therapeutic areas.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging its heterocyclic core for bioactivity.
• Material Science: Serves as a monomer or functionalizing agent in the production of specialty polymers, dyes, and organic electronic materials.
• Chemical Synthesis: An essential building block for constructing complex polycyclic structures in academic and industrial research laboratories.
• Ligand & Catalyst Development: Utilized to create novel chelating ligands and organocatalysts for asymmetric synthesis and metal complexation.

Basic Information

Product Name	4,5,6,7-Tetrahydro-Benzo[B]Thiophene-2-Carboxylic Acid
CAS No.	40133-07-1
Molecular Formula	C9H10O2S
Molecular Weight	182.24 g/mol
Synonyms	4,5,6,7-Tetrahydro-1-benzothiophene-2-carboxylic acid; 4,5,6,7-Tetrahydrobenzo[b]thiophene-2-carboxylic acid; 2-Carboxy-4,5,6,7-tetrahydrobenzo[b]thiophene; 4,5,6,7-Tetrahydro-2-benzothiophenecarboxylic acid; Tetrahydrobenzo[b]thiophene-2-carboxylic acid; 2-Thiophenecarboxylic acid, 4,5,6,7-tetrahydrobenzo-; 40133-07-1
EINECS	Contact for details

Quality Control

Our production of 4,5,6,7-Tetrahydro-Benzo[B]Thiophene-2-Carboxylic Acid adheres to stringent internal quality standards to ensure batch-to-batch consistency and high purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as assay, identity, and impurity profiles. We are committed to meeting the specific requirements of research and development, and specifications can be tailored upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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