Description

4,7-Dihydrobenzo[B]Thiophene-4,7-Dione is a high-purity, specialized organic compound belonging to the class of quinone-fused thiophenes. This chemical serves as a critical advanced intermediate for the synthesis of complex heterocyclic systems and functional materials. It is essential for R&D and production in the pharmaceutical, agrochemical, and organic electronics sectors, where its unique fused-ring structure enables the development of novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing novel drug candidates, particularly in oncology and antiviral research.
• Agrochemical Synthesis: Used in the development of new-generation herbicides, fungicides, and plant growth regulators.
• Organic Electronic Materials: Serves as a precursor for organic semiconductors, conductive polymers, and materials for OLEDs and solar cells.
• Dye and Pigment Manufacturing: Acts as an intermediate for producing high-performance, color-fast dyes and functional pigments.
• Research & Development: A valuable reagent in academic and industrial laboratories for exploring new heterocyclic chemistry and material science.
• Ligand and Catalyst Development: Utilized in the synthesis of specialized ligands for metal-organic frameworks (MOFs) and catalytic systems.

Basic Information

Product Name	4,7-Dihydrobenzo[B]Thiophene-4,7-Dione
CAS No.	73630-87-2
Molecular Formula	C8H4O2S
Molecular Weight	164.18 g/mol
Synonyms	Benzo[b]thiophene-4,7-dione; 4,7-Dioxo-4,7-dihydrobenzo[b]thiophene; Thianaphthenequinone; Benzothiophene-4,7-dione; 4,7-Dihydrobenzo[b]thiophene-4,7-dione; 4,7(3aH,7aH)-Benzo[b]thiophenedione; 4,7-Dioxobenzothiophene; TQ
EINECS	Contact for details

Quality Control

Our 4,7-Dihydrobenzo[B]Thiophene-4,7-Dione is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and batch-to-batch consistency. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This compound is easily oxidized; for long-term storage, consider maintaining under an inert atmosphere such as nitrogen or argon.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.