Description

5,7-Dichloro-2-(5,7-Dichloro-1,3-Dihydro-3-Oxo-2H-Indol-2-Ylidene)-1,2-Dihydro-3H-Indol-3-One is a high-purity, synthetic organic compound belonging to the class of halogenated indole derivatives. This compound serves as a critical advanced intermediate and key building block in the synthesis of complex molecules, particularly in the pharmaceutical and agrochemical sectors. It is essential for research and development teams focused on creating novel active ingredients, dyes, and functional materials that require a structurally defined, halogenated core.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of novel drug candidates, particularly those targeting specific biological pathways where the indole scaffold is active.
• Agrochemical Research: Used as a building block for developing new herbicides, fungicides, and insecticides with enhanced efficacy and selectivity.
• Dye and Pigment Synthesis: Serves as a key intermediate for creating specialized organic dyes and pigments, leveraging its conjugated system and halogen atoms for color and stability properties.
• Material Science: Employed in the research of organic electronic materials, such as semiconductors or light-emitting components, due to its electron-accepting characteristics.
• Chemical Research & Development: Used as a standard or reagent in methodological development and organic synthesis studies within academic and industrial R&D laboratories.

Basic Information

Product Name	5,7-Dichloro-2-(5,7-Dichloro-1,3-Dihydro-3-Oxo-2H-Indol-2-Ylidene)-1,2-Dihydro-3H-Indol-3-One
CAS No.	6371-38-6
Molecular Formula	C16H6Cl4N2O2
Molecular Weight	408.04 g/mol
Synonyms	2,2'-(1E,1'E)-[2,2'-Bi-1H-indene]-1,1',3,3'(2H,2'H)-tetrone, 5,5',7,7'-tetrachloro-; 5,5',7,7'-Tetrachloro-2,2'-biindan-1,1',3,3'-tetrone; 5,7-Dichloro-2-(5,7-dichloro-3-oxo-1H-indol-2(3H)-ylidene)-1,2-dihydro-3H-indol-3-one; 5,7,5',7'-Tetrachloroindigo; Tetrachloroindigo; CI 73065; Vat Blue 5; C.I. 73065
EINECS	228-923-5

Quality Control

Every batch of our 5,7-Dichloro-2-(5,7-Dichloro-1,3-Dihydro-3-Oxo-2H-Indol-2-Ylidene)-1,2-Dihydro-3H-Indol-3-One undergoes rigorous analytical testing to ensure high purity and batch-to-batch consistency. Our quality management system is designed to meet the stringent requirements of industrial and research applications. Comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with each shipment 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 a controlled room temperature (typically 15-25°C). Keep away from incompatible materials such as strong bases and reducing agents. For long-term storage, consider an inert atmosphere to maintain product integrity.

Specification

Item	Specification
Appearance	Dark Blue to Violet Powder
Identification (IR)	Conforms to Structure
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.