Description

In1776, (4,8-Bis(4-Chloro-5-(2-Ethylhexyl)Thiophen-2-Yl)Benzo[1,2-B:4,5-B']Dithiophene-2,6-Diyl)Bis(Trimethylstannane) is a high-purity, functionalized organic semiconductor monomer, specifically designed as a critical building block for advanced conjugated polymers. Its value lies in enabling precise molecular engineering for tuning the optoelectronic properties of materials used in next-generation energy devices. This compound is essential for R&D and production teams in the organic electronics and photovoltaics sectors, particularly those developing high-efficiency polymer solar cells (PSCs) and organic field-effect transistors (OFETs).

Application

• Donor-Acceptor Polymer Synthesis: Serves as a key electron-rich donor unit (D) in the synthesis of low-bandgap conjugated polymers for bulk-heterojunction solar cells.
• Organic Photovoltaic (OPV) Active Layer Material: Used to fabricate the photoactive layer in polymer solar cells, contributing to high power conversion efficiency (PCE) through optimized light absorption and charge transport.
• Organic Semiconductor Research: A fundamental material for academic and industrial research into the structure-property relationships of novel semiconducting polymers.
• Perovskite Solar Cell Component: Employed in the development of hole-transport materials (HTMs) or interfacial layers for perovskite solar cells to enhance stability and performance.
• OFET Channel Material Development: Used to create p-type semiconducting polymers for organic field-effect transistors, targeting applications in flexible displays and sensors.
• Chemical Vapor Deposition (CVD) & Vacuum Deposition Precursor: Acts as a high-purity precursor for the deposition of thin organic semiconductor films.

Basic Information

Product Name	In1776, (4,8-Bis(4-Chloro-5-(2-Ethylhexyl)Thiophen-2-Yl)Benzo[1,2-B:4,5-B']Dithiophene-2,6-Diyl)Bis(Trimethylstannane)
CAS No.	2239295-69-1
Molecular Formula	C48H62Cl2S4Sn2
Molecular Weight	1080.9 g/mol
Synonyms	BDTT-Sn; 2,6-Bis(trimethylstannyl)-4,8-bis(4-chloro-5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b:4,5-b']dithiophene; In1776 Monomer; BDT(2EH-Th-Cl) TMS; Benzo[1,2-b:4,5-b']dithiophene derivative, stannylated; OPV Monomer In1776; Stille Polymerization Monomer In1776; 4,8-Bis[5-(2-ethylhexyl)-4-chloro-2-thienyl]-2,6-bis(trimethylstannyl)benzo[1,2-b:4,5-b']dithiophene
EINECS	Contact for details

Quality Control

Every batch of In1776 is synthesized and purified under stringent, inert conditions to ensure the high purity required for sensitive polymerization reactions. Our quality assurance includes comprehensive analytical characterization using NMR (1H, 13C), HPLC, and elemental analysis to confirm chemical identity and purity. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting critical parameters such as assay, residual solvent levels, and tin content to support your R&D and scale-up processes.

Storage

Preserve in a tightly closed container, protected from light. For long-term stability, store the product in a freezer at -20°C to -10°C under an inert atmosphere (argon or nitrogen). The material is moisture-sensitive and should be handled in a dry environment. Allow the sealed container to equilibrate to room temperature before opening to prevent condensation.

Specification

Item	Specification
Appearance	Yellow to orange solid
Identification (NMR)	Conforms to structure
Purity (HPLC)	≥ 98.5%
Tin (Sn) Content	Theoretical
Residual Solvents (GC)	Meet ICH guidelines
Moisture (KF)	< 0.5%

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