Description

7-Oxo-4,5,6,7-Tetrahydro-1-Benzothiophene-3-Carboxylic Acid (Saltdata: Free) is a high-purity, versatile heterocyclic carboxylic acid building block of significant interest in advanced organic synthesis. Its unique fused ring structure containing a ketone and a free carboxylic acid group makes it a critical intermediate for constructing complex molecular architectures. This compound is primarily sought after by research institutions and pharmaceutical development companies for the synthesis of novel active pharmaceutical ingredients (APIs) and other fine chemicals.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and other therapeutic areas.
• Organic Synthesis Building Block: Used in the construction of complex heterocyclic compounds, leveraging its reactive ketone and carboxylic acid functionalities for cyclization and derivatization reactions.
• Agrochemical Research: Employed in the development of new active ingredients for crop protection products, where the benzothiophene core can impart specific biological activity.
• Material Science Research: Investigated as a monomer or functional component in the development of advanced organic materials, such as polymers with specific electronic or optical properties.
• Chemical Reference Standard: Supplied as a high-purity standard for analytical method development, quality control, and regulatory submissions in pharmaceutical laboratories.

Basic Information

Product Name	7-Oxo-4,5,6,7-Tetrahydro-1-Benzothiophene-3-Carboxylic Acid (Saltdata: Free)
CAS No.	96334-46-2
Molecular Formula	C9H8O3S
Molecular Weight	196.22 g/mol
Synonyms	4,5,6,7-Tetrahydro-7-oxo-1-benzothiophene-3-carboxylic Acid; 7-Oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylic Acid; 3-Carboxy-4,5,6,7-tetrahydro-1-benzothiophen-7-one; 7-Keto-4,5,6,7-tetrahydro-1-benzothiophene-3-carboxylic Acid; 7-Oxo-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylic acid (free acid); THBTC; Contact for additional synonyms.
EINECS	Contact for details

Quality Control

Our production of 7-Oxo-4,5,6,7-Tetrahydro-1-Benzothiophene-3-Carboxylic Acid adheres to stringent in-house quality protocols to ensure batch-to-batch consistency and high purity. Each lot is fully characterized using advanced analytical techniques including HPLC, GC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong acids and incompatible materials such as strong oxidizing agents and bases. For long-term storage, consider inert atmosphere conditions to maximize stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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