FREE shipping to on qualifying orders when you spend or more, processed by Ossila BV. All prices ex. VAT. Qualifying orders ship free worldwide! Fast, secure, and backed by the Ossila guarantee. It looks like you are visiting from , click to shop in or change country. Orders to the EU are processed by our EU subsidiary.

It looks like you are using an unsupported browser. You can still place orders by emailing us on info@ossila.com, but you may experience issues browsing our website. Please consider upgrading to a modern browser for better security and an improved browsing experience.


Product Code B3821-1g
Price $107 ex. VAT

Quality assured

Expert support

Volume discounts

Worldwide shipping

Fast and secure


Covalent Organic Frameworks (COFs) Terphenyl Ligand

A formyl functional ligand linker for COFs in application of highly efficient electrochemiluminescence, photocatalyst, oxygen reduction reactions, iodine adsorption and water pollutant detection and removal


4,4''-p-Terphenyldicarboxaldehyde (TPDA), has a linear terphenyl structure with one aldehyde on each end of the phenyl rings.

Two-dimensional COF, TCPP-TPDA-COF, with porphyrin active sites and natural π-electron network of terphenyl structure as the charge transport passage, facilitated the photo-induced aqueous oxygen-tolerant PET-RAFT polymerization under multi-wavelength visible light.

Constructed by Schiff base condensation reaction between 5,10,15,20-tetrakis(4-aminophenyl)-21H,23H-porphyrin (Tph) and 4,4''-p-Terphenyldicarboxaldehyde, covalent organic framework Tph-TPDA-COF showed excellent photocatalytic activity. 

MOF and COF ligands

MOF and COF ligands

Aldehyde ligand for cross-linked COF networks

Worldwide shipping for 62940-38-9

Worldwide shipping

Quick and reliable shipping

High purity 62940-38-9

High purity

>98% High purity

Facile reactions

Facile reactions

Aldehyde possesses excellent reactivity

General Information

CAS Number 62940-38-9
Chemical Formula C20H14O2
Full Name 4,4''-p-Terphenyldicarboxaldehyde
Molecular Weight 286.32 g/mol
Synonyms TDA, TPDA, [1,1':4',1''-Terphenyl]-4,4''-dicarboxaldehyde
Classification / Family Terphenyl, COF ligands

Chemical Structure

62940-38-9 - 4,4''-p-terphenyldicarboxaldehyde chemical structure 4,4''-p-Terphenyldicarboxaldehyde (TPDA) Chemical Structure, 62940-38-9

Product Details

Purity >98%
Melting Point 210 – 213 °C
Appearance White to off-white powder to flakes to fibres/crystals

MSDS Documentation

62940-38-9 - 4,4''-p-terphenyldicarboxaldehyde4,4''-p-Terphenyldicarboxaldehyde MSDS Sheet

Literature and Reviews

  1. A general design approach toward covalent organic frameworks for highly efficient electrochemiluminescence, Y. Li et al., Nat. Commun. 12, 4735 (2021); DOI: 10.1038/s41467-021-25013-8.
  2. Visible light-triggered PET-RAFT polymerization by heterogeneous 2D porphyrin-based COF photocatalyst under aqueous condition, H. Yang et al., Eur. Polym. J., 173, 111306 (2022); DOI: 10.1016/j.eurpolymj.2022.111306.
  3. Synthesis and Catalytic Properties of Metal–N-Heterocyclic-Carbene-Decorated Covalent Organic Framework, Y. Li et al., Org. Lett., 22 (18), 7363–7368 (2020); DOI: 10.1021/acs.orglett.0c02721.
  4. Solvothermal Synthesis of Uniform Covalent Organic Framework Microspheres Enabling High-Loading Palladium for Oxygen Reduction Reaction, X. Li et al., Macromolecules, 56 (12), 4482–4490 (2023); DOI: 10.1021/acs.macromol.3c00393.
  5. Reversed Regulation Effects of ssDNA on the Mimetic Oxidase and Peroxidase Activities of Covalent Organic Frameworks, L. Zhang et al., 19 (27), 2207798 (2023); DOI: 10.1002/smll.202207798.
  6. Linking Nitrogen-Rich Organic Cages into Isoreticular Covalent Organic Frameworks for Enhancing Iodine Adsorption Capability, K. Cheng et al., ACS Materials Lett., 5 (6), 1546–1555 (2023); DOI: 10.1021/acsmaterialslett.3c00213.
  7. Rapid Removal of Perfluoroalkanesulfonates from Water by β-Cyclodextrin Covalent Organic Frameworks, W. Wang et al., ACS Appl. Mater. Interfaces, 13 (41), 48700–48708 (2021); DOI: 10.1021/acsami.1c14043.

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.

Return to the top