Description

7,7'-Dibromo-5,5'-Dichloro-δ2,2'(3H,3'H)-Bi[1H-Indole]-3,3'-Dione is a high-purity, halogenated bis-indole derivative of significant interest in advanced organic synthesis. This compound serves as a critical synthetic intermediate and building block for the development of complex heterocyclic molecules. It is primarily utilized by research institutions and industrial R&D departments focused on pharmaceuticals, agrochemicals, and specialty dyes.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly in the development of compounds with potential biological activity.
• Agrochemical Research: Used in the research and development of new pesticides and herbicides, leveraging its halogenated structure for bioactivity.
• Organic Light-Emitting Diodes (OLEDs): Serves as a precursor for the synthesis of specialized organic semiconductors and electron-transport materials.
• Dye and Pigment Synthesis: Acts as an intermediate in the production of high-performance, color-fast dyes and pigments for industrial applications.
• Academic & Industrial R&D: A valuable reagent for methodological studies in organic chemistry, including cross-coupling and heterocycle formation reactions.
• Material Science: Investigated for the creation of novel polymers and coordination complexes with specific electronic or optical properties.

Basic Information

Product Name	7,7'-Dibromo-5,5'-Dichloro-δ2,2'(3H,3'H)-Bi[1H-Indole]-3,3'-Dione
CAS No.	6371-35-3
Molecular Formula	C16H4Br2Cl2N2O2
Molecular Weight	499.93 g/mol
Synonyms	7,7'-Dibromo-5,5'-dichloroindigo; 5,5'-Dichloro-7,7'-dibromoindigo; Indigo, 5,5'-dichloro-7,7'-dibromo-; 5,5'-Dichloro-7,7'-dibromo-δ2,2'-biindoline-3,3'-dione; C.I. 73300; Vat Blue 5; C.I. Vat Blue 5; 6371-35-3
EINECS	228-922-5

Quality Control

Our 7,7'-Dibromo-5,5'-Dichloro-δ2,2'(3H,3'H)-Bi[1H-Indole]-3,3'-Dione is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets the high standards required for research and development. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from incompatible materials such as strong bases and reducing agents. The container should be kept tightly sealed to protect from moisture.

Specification

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