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 B3931-1g
Price $157 ex. VAT

Covalent Organic Frameworks (COFs) Terphenyl Ligand

An aldehyde fluoro functionalised bridging ligand linker for COFs in application of fluorescence probe, carbon dioxide capture, catalyst, and selective gas adsorption


Specifications | MSDS | Literature and Reviews


1,3,5-Tris[(4-phenylboronic acid)]benzene (TPBAB), CAS number 900795-73-5, is a triangular with three phenyl boronic acid groups on the meta positions of the benzene ring. 1,3,5-Tris[(4-phenylboronic acid)]benzene is commonly engaged in the construction of the covalent organic frameworks via condensation reactions.

Microporous crystalline and mesoporous 2D covalent organic frameworks, COF-8, constructed from 1,3,5-tris[(4-phenylboronic acid)]benzene and 2,3,6,7,10,11-hexahydroxytriphenylene building blocks, showed great thermal stability, low density, and high porosity  with a surface areas of 1400 m2 g-1.

Obtained by condensation reaction using 2,3,6,7,14,15-hexaaminotriptycene and 1,3,5-tris[(4-phenylboronic acid)]benzene, highly porous diazaborole-linked polymer, DBLP-4,  exhibited high BET surface area of 904 m2 g−1 with potential application in small gas storage and separation. The amorphous polymers show high CO2 uptake of 4.5 mmol g−1 at 273 K with good CO2 selectivity over Nat ambient pressure.

MOF and COF ligands

MOF and COF ligands

Boronic acid ligand for cross-linked COF networks

Worldwide shipping for 900795-73-5

Worldwide shipping

Quick and reliable shipping

High purity 900795-73-5

High purity

>97% High purity

Duo functionality

Facile reactions

Readily for boronic acid condensation and Suzuki reaction

General Information


CAS Number 900795-73-5
Chemical Formula C24H21B3O6
Full Name 1,3,5-Tris[(4-phenylboronic acid)]benzene
Molecular Weight 437.85 g/mol
Synonyms TPBAB, BTPA, 1,3,5-benzenetris(4-phenylboronic acid), 4,4''-Di(dihydroxyboryl)-5'-(4-dihydroxy boryl phenyl)-1,1':3',1''-terphenyl, 1,3,5-tris(4-(boronic acid)phenyl)benzene
Classification / Family Terphenyls, COF ligands, Boronic acids

Chemical Structure


900795-73-5 - 1,3,5-tris[(4-phenylboronic acid)]benzene chemical structure
1,3,5-Tris[(4-phenylboronic acid)]benzene (TPBAB) Chemical Structure, 900795-73-5.

Product Details


Purity >97%
Melting Point N/A
Appearance Off-white to light brown powder/crystals

MSDS Documentation


900795-73-5 - 1,3,5-tris[(4-phenylboronic acid)]benzene1,3,5-Tris[(4-phenylboronic acid)]benzene MSDS Sheet

Literature and Reviews


  1. Multibranched Octupolar Module Embedded Covalent Organic Frameworks Enable Efficient Two-Photon Fluorescence, M. Yang et al., Adv. Funct. Mater., 30 (34), 2000516 (2020); DOI: 10.1002/adfm.202000516.
  2. Low Power, Low Temperature and Atmospheric Pressure Plasma-Induced Polymerization: Facile Synthesis and Crystal Regulation of Covalent Organic Frameworks, J. He et al., Angew. Chem. Int. Ed., 133 (18), 10072-10077 (2021); DOI: 10.1002/ange.202102051.
  3. Delamination of Layered Covalent Organic Frameworks, I. Berlanga et al., Small, 7 (9), 1207-1211 (2011); DOI: 10.1002/smll.201002264.
Return to the top