Description

11H,12H-[1]Benzothiopyrano[2,3-B][1]Benzothiopyran-11,12-Dione is a high-purity, specialized organic compound belonging to the benzothiopyran class. This chemical serves as a critical advanced intermediate and research-grade building block for the synthesis of complex heterocyclic molecules. It is primarily utilized by R&D chemists and process development teams in the pharmaceutical, agrochemical, and material science sectors seeking to develop novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting specific biological pathways.
• Agrochemical Research: Used as a building block for developing new herbicides, fungicides, or insecticides with unique modes of action.
• Organic Electronic Materials: Serves as a core structure for developing organic semiconductors, charge-transport materials, or light-emitting components.
• Dye & Pigment Synthesis: Intermediate for creating specialized dyes, pigments, or photochromic compounds due to its fused heterocyclic structure.
• Ligand & Catalyst Development: Utilized in organometallic chemistry to create novel ligands for catalytic systems.
• Academic & Industrial R&D: A valuable compound for fundamental research in organic synthesis and heterocyclic chemistry.

Basic Information

Item	Details
Product Name	11H,12H-[1]Benzothiopyrano[2,3-B][1]Benzothiopyran-11,12-Dione
CAS No.	53543-14-9
Molecular Formula	C18H8O2S2
Molecular Weight	328.39 g/mol
Synonyms	11H,12H-Benzothiopyrano[2,3-b]benzothiopyran-11,12-dione; Dibenzo[b,g]thiopyrano[3,2-e]thiopyran-5,10-dione; 5,10-Dioxo-5,10-dihydrodibenzo[b,g]thiopyrano[3,2-e]thiopyran; [1]Benzothiopyrano[2,3-b][1]benzothiopyran-11,12-dione; Thioindigo Intermediate; Benzothiopyran Dione Derivative
EINECS	Contact for details

Quality Control

Our 11H,12H-[1]Benzothiopyrano[2,3-B][1]Benzothiopyran-11,12-Dione is produced under a strict quality management system. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting all critical specifications are provided and available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, handling and packaging should minimize exposure to direct light.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.