Description

Thieno[3',2':5,6]Thiopyrano[4,3-B]Indole CAS NO 17820-21-2 is a complex heterocyclic organic compound featuring fused thiophene, thiopyran, and indole ring systems, serving as a sophisticated chemical building block. Its unique polycyclic structure makes it a valuable intermediate for advanced research and development in organic synthesis. This compound is primarily sought by pharmaceutical and agrochemical R&D teams for creating novel active ingredients and by academic researchers exploring new materials and photophysical properties.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders or possessing specific receptor binding profiles.
• Agrochemical Research: Used in the development of new-generation herbicides, fungicides, or insecticides, leveraging its heterocyclic core for biological activity.
• Organic Electronic Materials: Serves as a building block for π-conjugated systems in the research of organic semiconductors, OLEDs (Organic Light-Emitting Diodes), or photoconductive materials.
• Dye & Pigment Chemistry: Acts as a core structure for synthesizing specialized dyes and pigments with unique colorfastness or optical properties.
• Academic & Industrial R&D: A versatile scaffold for methodological studies in heterocyclic and fused-ring chemistry, catalysis, and material science.

Basic Information

Product Name	Thieno[3',2':5,6]Thiopyrano[4,3-B]Indole
CAS No.	17820-21-2
Molecular Formula	C13H7NS2
Molecular Weight	241.33 g/mol
Synonyms	Thieno[3',2':5,6]thiopyrano[4,3-b]indole; 9H-Thieno[3',2':5,6]thiopyrano[4,3-b]indole; 17820-21-2; Thiopyrano[4,3-b]indole, thieno[3',2':5,6]-; Thienothiopyranoindole; NSC 407348
EINECS	Contact for details

Quality Control

Our production of Thieno[3',2':5,6]Thiopyrano[4,3-B]Indole adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for research applications. Each lot undergoes comprehensive analytical characterization, including HPLC for purity assessment and NMR/IR for structural confirmation. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory documentation needs.

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 heat, sparks, and open flame. For long-term storage under inert atmosphere, please contact our technical team for specific recommendations.

Specification

Item	Specification
Appearance	Off-white to light yellow 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.