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4,4'-(Benzo[c][1,2,5]thiadiazole-4,7-diyl)dibenzaldehyde

CAS Number 914651-17-5

Carbaldehyde Monomers, Chemistry Building Blocks, COF Ligands, Materials, Monomers, Porous Organic Frameworks


Product Code B3891-1g
Price £60 ex. VAT

Covalent Organic Frameworks (COFs) Benzo[c][1,2,5]thiadiazole Ligand

An aldehyde bridging ligand linker for covalent polymeric frameworks (CPFs) in application of hydrogen evolution reaction, and arylamines detection


Specifications | MSDS | Literature and Reviews


4,4'-(Benzo[c][1,2,5]thiadiazole-4,7-diyl)dibenzaldehyde (BTDBA), CAS number 914651-17-5, has a structure of two 4-formylphenyl function groups that are joined to a benzo[c][1,2,5]thiadiazole (BT) core at 4,4-positions.

Benzothiadiazole-based covalent organic framework with an imine linkage, BT-TAPT-COF, demonstrated high crystallinity, excellent chemical stability, and significant light absorption ability as a high-performance platform for efficient visible-light driven hydrogen evolution reaction (HER).

Fluorescent ultrathin covalent triazine framework (F-CTF-3) nanostructure, constructed by the introduction of electron-deficient building block 4,4′-(benzo[c][1,2,5]thiadiazole-4,7-diyl)dibenzaldehyde with an aggregation-caused quenching behaviour, exhibited high stability, high porosity, and high fluorescence performance. Featuring a rich electron-deficient unit in the pore channel, F-CTF-3 is an ideal platform for sensing electron-rich PAA molecules with low detection limits of 11.7 and 1.47 nM toward phenylamine (PA) and p-phenylenediamine (PDA), respectively.

MOF and COF ligands

MOF and COF ligands

Aldehyde ligand for cross-linked COF networks

Worldwide shipping for 914651-17-5

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High purity 914651-17-5

High purity

>98% High purity

Facile reactions

Facile reactions

Aldehyde possesses excellent reactivity

General Information


CAS Number 914651-17-5
Chemical Formula C20H12N2O2S
Full Name 4,4'-(Benzo[c][1,2,5]thiadiazole-4,7-diyl)dibenzaldehyde
Molecular Weight 344.39 g/mol
Synonyms BTDBA, 4,7-bis(4-formylphenyl)-2,1,3-benzothiadiazole, 4,4'-(2,1,3-Benzothiadiazole-4,7-diyl)bisbenzaldehyde
Classification / Family Benzo[c][1,2,5]thiadiazoles, COF ligands

Chemical Structure


914651-17-5 - 4,4'-(benzo[c][1,2,5]thiadiazole-4,7-diyl)dibenzaldehyde chemical structure
4,4'-(Benzo[c][1,2,5]thiadiazole-4,7-diyl)dibenzaldehyde (BTDBA) Chemical Structure, 914651-17-5

Product Details


Purity >98%
Melting Point N/A
Appearance Yellow powder to fibres/crystals

MSDS Documentation


914651-17-5 - 4,4'-(benzo[c][1,2,5]thiadiazole-4,7-diyl)dibenzaldehyde4,4'-(Benzo[c][1,2,5]thiadiazole-4,7-diyl)dibenzaldehyde MSDS Sheet

Literature and Reviews


  1. A thiadiazole-based covalent triazine framework nanosheet for highly selective and sensitive primary aromatic amine detection among various amines, Y. Tang et al., J. Mater. Chem. A, 8, 16542-16550 (2020); DOI: 10.1039/C9TA14252E.
  2. Construction of Donor–Acceptor Heteroporous Covalent Organic Frameworks as Photoregulated Oxidase-like Nanozymes for Sensing Signal Amplification, G. Li et al., CS Appl. Mater. Interfaces, 14 (18), 21750–21757 (2022); DOI: 10.1021/acsami.2c04391.
  3. Highly dichroic benzo-2,1,3-thiadiazoledyes containing five linearly π-conjugated aromatic residues, with fluorescent emission ranging from green to red, in a liquid crystal guest–host system, X. Zhang et al., J. Mater. Chem., 16, 736-740 (2006); DOI: 10.1039/B512493J.
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