Ossila 4',4''',4'''''-Nitrilotris([1,1'-biphenyl]-3,5-dicarbaldehyde) B4091

4',4''',4'''''-Nitrilotris([1,1'-biphenyl]-3,5-dicarbaldehyde), commonly called TPA-6CHO (CAS 2030105-85-0), is a building block for covalent organic frameworks (COFs). Its tri(biphenyl-4-yl)amine core carries six aldehyde groups arranged with C3 symmetry, and every arm offers two reactive sites. This makes it well suited to forming densely cross-linked networks with hierarchical porosity.

When condensed with a C2 diamine linker, TPA-6CHO yields heteropore COFs that combine two kinds of hexagonal pore and adopt a hollow-spherical morphology. Paired with amine derivatives bearing four reactive sites, it gives 3D COFs with zyg topology. In published work, such a framework stabilised photoinduced donor-acceptor radical pairs and produced hydrogen peroxide photocatalytically at 3324 μmol/g·h.

Ossila supplies the compound as a bright yellow powder with a purity above 98%, offered in 250 mg, 500 mg and 1 g packs.

• Synthesis of highly cross-linked covalent organic frameworks with hierarchical porosity.
• Preparation of heteropore COFs with two types of hexagonal pores by reaction with C2 diamine ligands.
• Construction of zyg-type 3D COFs using amine derivatives with four reaction sites.
• Research on COF photocatalysts for hydrogen peroxide production.
• Use as a carbaldehyde building block for porous organic framework and MOF/COF network research.

• Product code: B4091
• M​olecular Weight: 641.68 g/mol
• Synonyms: TPA-6CHO; 4',4'',4'''-Nitrilotri(3,5-biphenyldicarbaldehyde)
• Classification: Porous organic frameworks, Carbaldehyde building block, COF ligands

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