Description

Thieno[2,3-e]benzothiazole (8Ci,9Ci) is a high-purity fused heterocyclic compound, serving as a critical advanced intermediate in organic synthesis and materials science. Its unique molecular architecture makes it a valuable building block for developing novel functional materials and active pharmaceutical ingredients (APIs). This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries seeking to innovate with complex sulfur- and nitrogen-containing heterocycles.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and anti-infective agents.
• Agrochemical Research: Used in the development of new generation herbicides, fungicides, and pesticides with unique modes of action.
• Organic Electronic Materials: Serves as a core structure for constructing organic semiconductors, charge-transport materials, and light-emitting materials for OLEDs.
• Dye & Pigment Synthesis: Building block for creating specialized dyes, pigments, and fluorescent markers with specific photophysical properties.
• Ligand & Catalyst Development: Utilized in organometallic chemistry to create novel ligands for catalysis and metal-organic frameworks (MOFs).
• Academic & R&D: Fundamental research compound for studying heterocyclic chemistry, reaction mechanisms, and structure-activity relationships (SAR).

Basic Information

Product Name	Thieno[2,3-e]benzothiazole (8Ci,9Ci)
CAS No.	211-36-9
Molecular Formula	C9H5NS2
Molecular Weight	191.27 g/mol
Synonyms	Thieno[2,3-e]benzothiazole; Thienobenzothiazole; Benzothieno[2,3-d]thiazole; 2,3-Dihydrothieno[2,3-e]benzothiazole; 211-36-9; Thieno(2,3-e)benzothiazole; CCRIS 6661; NSC 163031; Benzothienothiazole
EINECS	Contact for details

Quality Control

Our Thieno[2,3-e]benzothiazole is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, GC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, confirming compliance with agreed specifications. Our quality commitment supports applications requiring high-purity intermediates for GLP and cGMP environments.

Storage

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

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%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.