Description

3-(Methylthio)-4-Oxo-4,5,6,7-Tetrahydrobenzo[C]-Thiophene-1-Carboxylic Acid is a high-purity, advanced pharmaceutical intermediate with a complex fused-ring structure. This compound is valued for its role as a critical building block in the synthesis of novel active pharmaceutical ingredients (APIs), particularly in therapeutic areas requiring sophisticated heterocyclic chemistry. Industrial and research chemists in the pharmaceutical, agrochemical, and fine chemical sectors rely on this material for its precise reactivity and structural features to develop new compounds.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex drug candidates, especially those targeting central nervous system (CNS) disorders or possessing specific receptor activity.
• Agrochemical Research: Used in the development of new herbicides, fungicides, or insecticides that leverage its unique thiophene-based scaffold.
• Material Science Chemistry: Serves as a monomer or functional unit in the research of organic semiconductors, conductive polymers, or specialty dyes.
• Organic Synthesis Building Block: Employed in academic and industrial R&D for constructing complex polycyclic molecules due to its reactive carboxylic acid and ketone functionalities.
• Chemical Reference Standard: Used as a high-purity analytical standard for quality control and method development in analytical laboratories.

Basic Information

Product Name	3-(Methylthio)-4-Oxo-4,5,6,7-Tetrahydrobenzo[C]-Thiophene-1-Carboxylic Acid
CAS No.	168279-58-1
Molecular Formula	C11H10O3S2
Molecular Weight	254.32 g/mol
Synonyms	3-(Methylthio)-4-oxo-4,5,6,7-tetrahydro-1-benzothiophene-1-carboxylic acid; 4,5,6,7-Tetrahydro-3-(methylthio)-4-oxobenzo[c]thiophene-1-carboxylic Acid; 1-Benzothiophene-1-carboxylic acid, 4,5,6,7-tetrahydro-3-(methylthio)-4-oxo-; 3-Methylsulfanyl-4-oxo-4,5,6,7-tetrahydro-1-benzothiophene-1-carboxylic acid
EINECS	Contact for details

Quality Control

Our production of 3-(Methylthio)-4-Oxo-4,5,6,7-Tetrahydrobenzo[C]-Thiophene-1-Carboxylic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR, to ensure it meets exacting standards for pharmaceutical intermediate applications. A detailed Certificate of Analysis (COA) is provided with each shipment, guaranteeing traceability and compliance with your specifications.

Storage

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

Specification

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