Description

Dimethyl 2-(2,2,6-Trimethyl-3-Thioxo-2,3-Dihydroquinolin-4(1H)-Ylidene)-1,3-Dithiole-4,5-Dicarbox is a specialized organic compound featuring a complex quinoline-dithiole fused structure. This compound serves as a key intermediate or functional material in advanced chemical synthesis, valued for its unique electronic and photophysical properties derived from its conjugated system. It is primarily required by R&D laboratories, pharmaceutical developers, and manufacturers of organic electronic materials for applications in novel drug discovery and functional material science.

Application

• Pharmaceutical Intermediate: Used in the research and synthesis of novel active pharmaceutical ingredients (APIs), particularly those targeting specific biological pathways.
• Organic Semiconductor Precursor: Serves as a building block for organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and field-effect transistors (OFETs) due to its electron-accepting characteristics.
• Dye and Pigment Synthesis: Acts as a core structure for developing high-performance dyes, pigments, and photosensitizers with specific light-absorption properties.
• Chemical Research & Development: Employed as a model compound or reagent in academic and industrial research exploring new heterocyclic chemistry and charge-transfer complexes.
• Material Science Additive: Investigated for use as a functional dopant or modifier to alter the electrical or optical properties of polymeric and composite materials.

Basic Information

Product Name	Dimethyl 2-(2,2,6-Trimethyl-3-Thioxo-2,3-Dihydroquinolin-4(1H)-Ylidene)-1,3-Dithiole-4,5-Dicarbox
CAS No.	258267-12-8
Molecular Formula	C20H19NO4S3
Molecular Weight	433.56 g/mol
Synonyms	Dimethyl 4,5-dicarboxy-2-[(2,2,6-trimethyl-3-thioxo-1,2,3,4-tetrahydro-4-quinolinylidene)]-1,3-dithiole; 4,5-Dicarbomethoxy-2-[(2,2,6-trimethyl-3-thioxo-1,2,3,4-tetrahydro-4-quinolinylidene)]-1,3-dithiole; 1,3-Dithiole-4,5-dicarboxylic acid, 2-(2,2,6-trimethyl-3-thioxo-1,2,3,4-tetrahydro-4-quinolinylidene)-, dimethyl ester; TMTQ-Dithiole diester; Quinoline-dithiole fused diester.
EINECS	Contact for details

Quality Control

Our Dimethyl 2-(2,2,6-Trimethyl-3-Thioxo-2,3-Dihydroquinolin-4(1H)-Ylidene)-1,3-Dithiole-4,5-Dicarbox is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing including HPLC, NMR, and mass spectrometry to confirm identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided and available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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