1,3,5-Triethylbenzene is a chemical compound of the group of aromatic hydrocarbons.

1,3,5-Triethylbenzene can be prepared by a Friedel-Crafts alkylation of benzene with ethyl bromide in presence of aluminium chloride.

[4] 1,3,5-Triethylbenzene is a flammable, hard to ignite, colorless liquid that is almost insoluble in water.

[1] The refractive index is 1.495[5] 1,3,5-Triethylbenzene can be used in synthesis of a series of di- and trinucleating ligands.

[5] The vapour of 1,3,5-Triethylbenzene can form an explosive mixture with air (flash point: 76 °C).