Description

9-Chloro-7,7-Dimethyl-7H-Benzo[B]Fluoreno[3,4-D]Thiophene CAS NO 1374677-45-8 is a high-purity, polycyclic aromatic heterocyclic compound featuring a complex fused-ring system. This specialized chemical serves as a critical advanced intermediate in the synthesis of novel organic electronic materials and functional dyes. It is primarily required by R&D chemists and process development scientists in the fields of organic semiconductors, OLED (Organic Light-Emitting Diode) materials, and photovoltaics.

Application

• Organic Semiconductor Precursor: A key building block for the synthesis of novel hole-transport materials (HTMs) and electron-transport materials (ETMs) used in OLED devices and thin-film transistors.
• Functional Dye Intermediate: Serves as a core structure in the development of high-performance pigments and dyes with specific optical properties for imaging and sensing applications.
• Photovoltaic Material Research: Used in the research and development of new donor or acceptor materials for organic solar cells (OPVs) due to its tunable electronic properties.
• Chemical Synthesis & Catalysis: Acts as a sophisticated ligand or precursor in catalytic systems and in the synthesis of complex polycyclic aromatic hydrocarbons (PAHs) for material science.
• Academic & Industrial R&D: Essential for fundamental research in organic chemistry and materials science, exploring new molecular architectures with unique photophysical characteristics.

Basic Information

Product Name	9-Chloro-7,7-Dimethyl-7H-Benzo[B]Fluoreno[3,4-D]Thiophene
CAS No.	1374677-45-8
Molecular Formula	C21H15ClS
Molecular Weight	334.86 g/mol
Synonyms	9-Chloro-7,7-dimethyl-7H-benzo[b]fluoreno[3,4-d]thiophene; 7H-Benzo[b]fluoreno[3,4-d]thiophene, 9-chloro-7,7-dimethyl-; Benzo[b]fluoreno[3,4-d]thiophene, 9-chloro-7,7-dimethyl-7H-; 9-Chloro-7,7-dimethylbenzo[b]fluoreno[3,4-d]thiophene
EINECS	Contact for details

Quality Control

Our production of 9-Chloro-7,7-Dimethyl-7H-Benzo[B]Fluoreno[3,4-D]Thiophene adheres to stringent internal quality protocols to ensure batch-to-batch consistency and high purity, which is critical for sensitive electronic applications. Each lot is characterized using advanced analytical techniques including HPLC, GC-MS, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from heat, sparks, and open flame. For long-term storage, consider storing under an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference standard
Purity (HPLC)	≥ 97.0% (Area %)
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 1.0%
Total Impurities (HPLC)	≤ 3.0%

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