Br-BT-CHO

CAS Number 1071224-34-4

Carbaldehyde Monomers, Chemistry Building Blocks, Heterocyclic Building Blocks, Materials, Monomers

Overview
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Br-BT-CHO (CAS number 1071224-34-4), namely 7-Bromobenzo[c][1,2,5]thiadiazole-4-carbaldehyde, is a benzothiadiazole derivative with both bromine and aldehyde functional groups. Br-BT-CHO can be used as intermediate for further either carbon-carbon single bond (C-C) via Stille coupling, or double bond (C=C) formation via Aldol condensation reactions.

Br-BT-CHO as an intermediate can be used for the synthesis of non-fullerene acceptors such as o-IDTBR and FBR.

Benzothiadiazole derivative

For the synthesis of NFAs

High purity

>98% Br-BT-CHO Purity

Worldwide shipping

Quick and reliable shipping

Substituted with bromide and aldehyde

For muti-step reactions

General Information

CAS Number	1071224-34-4
Chemical Formula	C₇H₃BrN₂OS
Molecular Weight	243.08 g/mol
Full Name	7-Bromobenzo[c][1,2,5]thiadiazole-4-carbaldehyde
Synonyms	7-Bromo-4-formyl-2,1,3-benzothiadiazole
Classification / Family	Benzothiadiazole, Monomer and intermediates, None-fullerene acceptors (NFAs), NFA-OSCs, printing electronics

Chemical Structure

Product Details

Purity	>98% (by NMR)
Melting Point	192 °C - 194 °C
Appearance	Slightly yellow crystalline powder

MSDS Documentation

Br-BT-CHO MSDS Sheet

Literature and Reviews

P3HT-Based Polymer Solar Cells with 8.25% Efficiency Enabled by a Matched Molecular Acceptor and Smart Green-Solvent Processing Technology, X. Xu et al., Adv. Mater., 31 (52), 1906045 (2019); DOI: 10.1002/adma.201906045.
π-Bridge-Independent 2-(Benzo[c][1,2,5]thiadiazol-4-ylmethylene)malononitrile-Substituted Nonfullerene Acceptors for Efficient Solar Cells, K. Wang et al., Chem. Mater., 28 (7), 2200–2208 (2016); DOI: 10.1021/acs.chemmater.6b00131.
Significant Improvement of Dye-Sensitized Solar Cell Performance by Small Structural Modification in π-Conjugated Donor–Acceptor Dyes, S. Haid et al., Adv. Funct. Mater., 22, 1291–1302 (2012); DOI: 10.1002/adfm.201102519.
A single atom change “switches-on” solar-to-energy conversion efficiency on Zn-porphyrin based Dye Sensitized Solar Cell to 10.5%, L. Cabau et al., Energy Environ. Sci., 8, 1368-1375 (2015); DOI: 10.1039/C4EE03320E.
D–A–A-Type Emitter Featuring Benzo[c][1,2,5]thiadiazole and Polar C-N Bond as Tandem Acceptor for High-Performance Near-Infrared Organic Light-Emitting Diodes, Y. Wang et al., Adv. Optical Mater., 5 (24), 1700566 (2017); DOI: 10.1002/adom.201700566..

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