Description

5,7-Dichloro-1,2-Dihydro-2-(1-Oxonaphtho[2,1-B]Thien-2(1H)-Ylidene)-3H-Indol-3-One is a high-purity, complex heterocyclic organic compound that serves as a critical advanced intermediate in fine chemical synthesis. Its unique fused-ring structure makes it a valuable building block for the development of novel functional materials and active pharmaceutical ingredients (APIs). This compound is primarily sought by research institutions and industrial manufacturers engaged in the development of specialty dyes, pigments, and high-performance organic electronic materials.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of novel drug candidates, particularly those targeting specific biological pathways.
• Organic Semiconductor Research: Used in the development of new organic light-emitting diodes (OLEDs) and photovoltaic materials due to its electron-accepting properties.
• Specialty Dye & Pigment Synthesis: Acts as a core structure for creating high-value, color-fast dyes and functional pigments.
• Advanced Material Science: Employed in research for nonlinear optical (NLO) materials and other high-tech applications.
• Chemical Research & Development: Utilized as a standard or building block in academic and industrial R&D for exploring new chemical entities.

Basic Information

Product Name	5,7-Dichloro-1,2-Dihydro-2-(1-Oxonaphtho[2,1-B]Thien-2(1H)-Ylidene)-3H-Indol-3-One
CAS No.	6424-67-5
Molecular Formula	C22H9Cl2NO2S
Molecular Weight	422.28 g/mol
Synonyms	5,7-Dichloro-2-(1-oxonaphtho[2,1-b]thien-2(1H)-ylidene)-1,2-dihydro-3H-indol-3-one; 2-(5,7-Dichloro-3-oxo-1,3-dihydro-2H-indol-2-ylidene)-1H-naphtho[2,1-b]thiophen-1-one; Naphtho[2,1-b]thiophene-1(2H)-one, 2-(5,7-dichloro-3-oxo-1,3-dihydro-2H-indol-2-ylidene)-; CAS 6424-67-5
EINECS	Contact for details

Quality Control

Our 5,7-Dichloro-1,2-Dihydro-2-(1-Oxonaphtho[2,1-B]Thien-2(1H)-Ylidene)-3H-Indol-3-One is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing specifications and test results is provided with each shipment to guarantee compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (15-25°C). Keep away from incompatible materials. For long-term storage, consider an inert atmosphere to preserve stability.

Specification

Item	Specification
Appearance	Yellow to orange crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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