Description

1,3,9,11-Tetramethyl-5,7-Dihydrodibenzo[C,E]Thiepin is a specialized organic sulfur heterocycle with a unique fused ring structure, serving as a high-value synthetic intermediate. Its molecular architecture makes it a critical building block for advanced material science and pharmaceutical research, where precise structural control is paramount. This compound is essential for R&D chemists and process engineers in the fine chemical, agrochemical, and organic electronics sectors seeking to develop novel compounds with tailored properties.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of complex drug candidates, particularly those requiring the dibenzothiepin scaffold.
• Agrochemical Synthesis: Used in the research and development of new-generation pesticides and herbicides.
• Material Science Research: Serves as a monomer or building block for developing organic semiconductors, conductive polymers, and advanced organic frameworks.
• Ligand and Catalyst Development: Utilized in organometallic chemistry to create novel ligands for catalytic systems.
• Dye and Pigment Chemistry: Intermediate for synthesizing specialized chromophores and functional dyes.
• Academic and Industrial R&D: A valuable tool for methodological studies and exploring new chemical reactions in organic synthesis.

Basic Information

Product Name	1,3,9,11-Tetramethyl-5,7-Dihydrodibenzo[C,E]Thiepin
CAS No.	31066-96-3
Molecular Formula	C₁₈H₂₀S
Molecular Weight	268.42 g/mol
Synonyms	5,7-Dihydro-1,3,9,11-tetramethyldibenzo[c,e]thiepin; Dibenzo[c,e]thiepin, 5,7-dihydro-1,3,9,11-tetramethyl-; 1,3,9,11-Tetramethyl-5,7-dihydrodibenzo[c,e]thiepin; Tetramethyldihydrodibenzothiepin
EINECS	Contact for details

Quality Control

We maintain stringent quality control protocols for our fine chemical intermediates. Each batch of 1,3,9,11-Tetramethyl-5,7-Dihydrodibenzo[C,E]Thiepin is analyzed using advanced techniques like HPLC, GC, and NMR to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment, and we support custom purity requirements for specific R&D or scale-up projects.

Storage

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

Specification

Item	Specification
Appearance	White to off-white 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.