Description

Ethyl 3-[(2-Ethoxy-2-Oxoethyl)Thio]-4-Oxo-4,5,6,7-Tetrahydrobenzo[C]Thiophene-1-Carboxylate is a high-purity, specialized organic compound with the CAS registry number 172516-34-6. This chemical serves as a critical advanced intermediate in the synthesis of complex molecules, valued for its unique fused-ring thiophene structure. It is primarily sought by pharmaceutical research and development organizations and fine chemical manufacturers for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A key building block in the research and synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders or possessing specific receptor activity.
• Agrochemical Synthesis: Used in the development of new-generation pesticides and herbicides, where its heterocyclic core contributes to biological activity.
• Material Science Research: Serves as a precursor for organic electronic materials, such as semiconductors or charge-transport layers, due to its conjugated thiophene system.
• Organic Synthesis & Process Chemistry: Employed in academic and industrial laboratories for constructing complex polycyclic frameworks and exploring new chemical methodologies.
• Dye & Pigment Intermediate: Potential use in the synthesis of specialized dyes and organic pigments where the benzo[c]thiophene moiety imparts specific coloristic properties.

Basic Information

Item	Details
Product Name	Ethyl 3-[(2-Ethoxy-2-Oxoethyl)Thio]-4-Oxo-4,5,6,7-Tetrahydrobenzo[C]Thiophene-1-Carboxylate
CAS No.	172516-34-6
Molecular Formula	C15H18O5S2
Molecular Weight	342.43 g/mol
Synonyms	Ethyl 3-(carbethoxymethylthio)-4-oxo-4,5,6,7-tetrahydro-1-benzothiophene-2-carboxylate; 1-Carboxyethyl 3-[(2-ethoxy-2-oxoethyl)thio]-4-oxo-4,5,6,7-tetrahydrobenzo[c]thiophene; 172516-34-6; Tetrahydrobenzo[c]thiophene carboxylate derivative; Ethyl 3-[(2-ethoxy-2-oxoethyl)sulfanyl]-4-oxo-4,5,6,7-tetrahydro-1-benzothiophene-2-carboxylate
EINECS	Contact for details

Quality Control

Our production of Ethyl 3-[(2-Ethoxy-2-Oxoethyl)Thio]-4-Oxo-4,5,6,7-Tetrahydrobenzo[C]Thiophene-1-Carboxylate adheres to stringent quality protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and spectroscopic identification (NMR, IR, MS), to ensure it meets exacting customer specifications. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting all critical quality attributes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider an inert atmosphere to maintain optimal 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.