Description

Ethyl 3-(Methylthio)-4-Oxo-4,5,6,7-Tetrahydrobenzo[C]Thiophene-1-Carboxylate is a high-purity, advanced pharmaceutical intermediate with a complex heterocyclic 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 molecular scaffolds. It is primarily sought by research institutions and manufacturers in the pharmaceutical and agrochemical sectors for developing new drug candidates and specialty chemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of complex heterocyclic APIs, potentially for central nervous system (CNS) or anti-inflammatory targets.
• Agrochemical Research: Serves as a building block for developing new active ingredients in crop protection products, such as herbicides or fungicides.
• Organic Synthesis: Used in academic and industrial R&D for constructing fused thiophene ring systems, which are valuable in material science and medicinal chemistry.
• Chemical Reference Standard: Employed as a high-purity analytical standard for quality control and method development in analytical laboratories.

Basic Information

Product Name	Ethyl 3-(Methylthio)-4-Oxo-4,5,6,7-Tetrahydrobenzo[C]Thiophene-1-Carboxylate
CAS No.	168279-54-7
Molecular Formula	C13H16O3S2
Molecular Weight	284.39 g/mol
Synonyms	Ethyl 3-(methylthio)-4-oxo-4,5,6,7-tetrahydro-1-benzothiophene-1-carboxylate; 4,5,6,7-Tetrahydro-3-(methylthio)-4-oxobenzo[c]thiophene-1-carboxylic Acid Ethyl Ester; 1-Benzothiophene-1-carboxylic acid, 4,5,6,7-tetrahydro-3-(methylthio)-4-oxo-, ethyl ester; Ethyl 3-methylsulfanyl-4-oxo-4,5,6,7-tetrahydro-1-benzothiophene-1-carboxylate
EINECS	Contact for details

Quality Control

Our Ethyl 3-(Methylthio)-4-Oxo-4,5,6,7-Tetrahydrobenzo[C]Thiophene-1-Carboxylate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods, to ensure it meets the high standards required for pharmaceutical R&D. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from incompatible materials and sources of ignition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
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.