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Product Code B3531-1g
Price £121 ex. VAT

Covalent organic frameworks (COFs) triethynylphenyl amine ligand

for the synthesis of COFs and MOFs for the applications in porous materials, AIEs and dyes


Specifications | MSDS | Literature and Reviews


Tris(4-ethynylphenyl)amine (CAS number 189178-09-4), is a tertiary amine with three 4-ethynlphenyl groups. Tris(4-ethynylphenyl)amine can undergo various reactions for synthesising COFs, including the Sonogashira reaction and click polymerisation. By reacting tris(4-ethynylphenyl)amine with tetrakis(bromophenyl)ethene using the Sonogashira reaction, an aggregation-induced emission (AIE) COF material can be produced. The resulting COF exhibits an efficiency of electrochemiluminescence of 1.72%. Tris(4-ethynylphenyl)amine can also react with ferrocene diazides for polytriazoles via azide-alkyne cycloaddition (click reaction). These hyperbranched polytriazoles act as precursors for nanostructured magnetoceramics.

Tris(4-ethynylphenyl)amine also engages in a reaction with ruthenium (Ru), resulting in the formation of a Ru-acetylide MOF. The product has multistep reversible redox behaviour.

Facile reactions

Facile reactions

Readily for click reaction and Sonogashira reaction

High Purity 189178-09-4

High Purity

>98% Purity

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MOF and COF ligands

MOF and COF ligands

Ethyne ligand for cross-linked COF networks

General Information


CAS Number 189178-09-4
Chemical Formula C24H15N
Full Name 4-Ethynyl-N,N-bis(4-ethynylphenyl)aniline
Molecular Weight 317.38 g/mol
Synonyms TEPA, N,N,N-tris(4-ethynylphenyl)amine, 4-Ethynyl-N,N-bis(4-ethynylphenyl)benzenamine
Classification / Family Triphenylamine ligands, Alkynyl ligands, AIEs, COFs, MOFs, Macromolecules, Dyes

Chemical Structure


Tris(4-ethynylphenyl)amine chemical structure, CAS 189178-09-4.
Tris(4-ethynylphenyl)amine chemical structure, CAS 189178-09-4

Product Details


Purity 98%
Melting Point Tm = 115 °C
Appearance Orange to brown powder

MSDS Documentation


Tris(4-ethynylphenyl)amineTris(4-ethynylphenyl)amine MSDS Sheet

Literature and Reviews


  1. Tetraphenylenthene-based conjugated microporous polymer for aggregation-induced electrochemiluminescence, L. Cui et al., ACS Appl. Mater. Interfaces, 12(7), 7966–7973 (2020); DOI: 10.1021/acsami.9b21943.
  2. Microporous poly(tri(4-ethynylphenyl)amine) networks: synthesis, properties, and atomistic simulation, J. -X. Jiang et al., Macromolecules, 42 (7), 2658–2666 (2008); DOI: 10.1021/ma802625d.
  3. Ferrocene-based hyperbranched polytriazoles: synthesis by click polymerization and application as precursors to nanostructured magnetoceramics, H. Li et al., Macromol. Rapid Commun., 38, 1700075 (2017); DOI: 10.1002/marc.201700075.
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