Description

Benzo[B]Thiophene-2,3-Dione is a versatile heterocyclic organic compound characterized by its fused thiophene and quinone structure. This chemical serves as a critical synthetic intermediate and building block in advanced organic synthesis, valued for its unique reactivity profile. It is primarily sought after by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and material science sectors for developing novel active ingredients and functional molecules.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of biologically active molecules, including potential drug candidates and therapeutic agents.
• Agrochemical Synthesis: Building block for developing novel pesticides, herbicides, and fungicides.
• Organic Electronic Materials: Used in research for creating organic semiconductors, conductive polymers, and other advanced materials.
• Dye and Pigment Manufacturing: Serves as a core structure for synthesizing specialized dyes and organic pigments.
• Chemical Research & Development: Essential reagent in academic and industrial R&D for exploring new organic reactions and methodologies.
• Ligand and Catalyst Preparation: Utilized in the development of novel ligands for metal complexes and catalytic systems.

Basic Information

Product Name	Benzo[B]Thiophene-2,3-Dione
CAS No.	493-57-2
Molecular Formula	C8H4O2S
Molecular Weight	164.18 g/mol
Synonyms	2,3-Dioxo-2,3-dihydrobenzo[b]thiophene; Thianaphthenequinone; Benzothiophene-2,3-dione; 2,3(1H)-Benzothiophenedione; 1-Thianaphthenequinone; TQ; Benzo[b]thiophene-2,3(1H)-dione
EINECS	207-785-9

Quality Control

Our Benzo[B]Thiophene-2,3-Dione is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets the high standards required for research and industrial synthesis. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and consistent quality.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials such as strong bases and reducing agents. Due to its light-sensitive nature, containers should be kept in opaque packaging or amber glass.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	158 - 162 °C
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.