Description

In1656, 5-(3-(5-Bromothiophen-2-Yl)-5,7-Bis(2-Ethylhexyl)-4,8-Dioxo-4,8-Dihydrobenzo[1,2-C:4,5-C']Dithiophen-1-Yl)Thiophene-2-Carbaldehyde is a high-purity, complex organic compound designed for advanced material synthesis. This product is a critical building block for the development of next-generation organic semiconductors and non-fullerene acceptors due to its specific electron-deficient structure and functional groups. It is essential for researchers and manufacturers in the fields of organic photovoltaics (OPV), organic field-effect transistors (OFETs), and perovskite solar cells who require precise molecular components to tune device performance and efficiency.

Application

• Organic Photovoltaic (OPV) Cells: Serves as a key electron-accepting unit or intermediate in the synthesis of non-fullerene acceptors (NFAs) for high-efficiency solar energy conversion.
• Perovskite Solar Cells: Used in the development of novel hole-transporting materials (HTMs) or interfacial layers to improve device stability and power conversion efficiency.
• Organic Field-Effect Transistors (OFETs): Acts as a precursor for n-type or ambipolar semiconductor materials, enabling the fabrication of flexible and printed electronics.
• Organic Light-Emitting Diodes (OLEDs): Employed in the synthesis of electron-transport materials or host materials for specific emission layers.
• Chemical Research & Development: A valuable intermediate for synthetic chemists exploring novel π-conjugated systems, dyes, and functional materials.
• Photodetectors and Sensors: Used in the creation of sensitive organic-based photodetectors and chemical sensors due to its tunable optoelectronic properties.

Basic Information

Product Name	In1656, 5-(3-(5-Bromothiophen-2-Yl)-5,7-Bis(2-Ethylhexyl)-4,8-Dioxo-4,8-Dihydrobenzo[1,2-C:4,5-C']Dithiophen-1-Yl)Thiophene-2-Carbaldehyde
CAS No.	1252914-65-0
Molecular Formula	C37H39BrO3S4
Molecular Weight	755.86 g/mol
Synonyms	5-[3-(5-Bromothiophen-2-yl)-5,7-bis(2-ethylhexyl)-4,8-dioxobenzo[1,2-c:4,5-c']dithiophen-1-yl]thiophene-2-carboxaldehyde; Thiophene-2-carboxaldehyde, 5-[3-(5-bromo-2-thienyl)-5,7-bis(2-ethylhexyl)-4,8-dioxo-4H,8H-benzo[1,2-c:4,5-c']dithiophen-1-yl]-; In1656; BTPDA-2Br (commonly used abbreviation for similar structures); Benzo[1,2-c:4,5-c']dithiophene-4,8-dione derivative; Non-fullerene acceptor intermediate; OPV/OFET building block.
EINECS	Contact for details

Quality Control

Our In1656 is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity, critical for sensitive optoelectronic applications. Each lot is characterized using advanced analytical techniques including HPLC, NMR (1H and 13C), and Mass Spectrometry to confirm identity and purity. Certificates of Analysis (COA) detailing all specifications are provided and available upon request, supporting your R&D and quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) at a controlled room temperature (15-25°C) to prevent oxidation and degradation. Keep the container in a cool, dry, and well-ventilated place, away from incompatible materials.

Specification

Item	Specification
Appearance	Yellow to orange solid
Identification (HPLC)	Conforms to reference standard
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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