Description

7,7'-Diamino-5,5'-Dichloro-δ2,2'(3H,3'H)-Bibenzo[B]Thiophene-3,3'-Dione is a high-purity, specialized heterocyclic organic compound with the CAS number 6371-13-7. This chemical serves as a critical advanced intermediate in the synthesis of high-performance pigments and functional dyes, valued for its structural complexity and specific reactive sites. It is primarily sought after by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors for developing novel active ingredients and colorants.

Application

• Key Intermediate for High-Performance Pigments: Serves as a crucial building block in the synthesis of complex organic pigments, particularly those requiring high thermal stability and lightfastness for plastics and coatings.
• Pharmaceutical Research & Development: Used as a sophisticated scaffold or precursor in medicinal chemistry for the discovery of new drug candidates, leveraging its unique bibenzothiophene-dione core.
• Agrochemical Synthesis: Employed in the development of advanced active ingredients for crop protection products, where its specific chlorinated and aminated structure is utilized.
• Functional Dye Manufacturing: Integral to producing specialized dyes for non-textile applications, such as in electronics (e.g., OLED materials) or imaging technologies.
• Organic Semiconductor Research: Investigated as a potential component in the development of novel organic electronic materials due to its conjugated system and electron-accepting properties.
• Chemical Research & Custom Synthesis: Supplied to R&D laboratories for use in method development, catalysis studies, and the creation of novel chemical libraries.

Basic Information

Product Name	7,7'-Diamino-5,5'-Dichloro-δ2,2'(3H,3'H)-Bibenzo[B]Thiophene-3,3'-Dione
CAS No.	6371-13-7
Molecular Formula	C16H8Cl2N2O2S2
Molecular Weight	411.28 g/mol
Synonyms	5,5'-Dichloro-7,7'-diamino-2,2'-bi-1,3-benzothiophene-3,3'(2H,2'H)-dione; 7,7'-Diamino-5,5'-dichloro-2,2'-bibenzothiophene-3,3'-dione; 2,2'-Bibenzothiophene-3,3'-dione, 7,7'-diamino-5,5'-dichloro-; 5,5'-Dichloro-7,7'-diamino-[2,2']bibenzothiophenyl-3,3'-dione; DADCBTO; CAS 6371-13-7
EINECS	Contact for details

Quality Control

Our production of 7,7'-Diamino-5,5'-Dichloro-δ2,2'(3H,3'H)-Bibenzo[B]Thiophene-3,3'-Dione adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity, IR and NMR for structural confirmation, and tests for residual solvents and heavy metals. We provide Certificates of Analysis (COA) with every shipment, detailing all specifications and test results to ensure traceability and compliance with your research or manufacturing requirements.

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 to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to Orange Crystalline Powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Residual Solvents (GC)	Meets ICH guidelines

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