👉 The term "trisubstituted" refers to a compound that has been subjected to three different substituents. It is used in organic chemistry to describe compounds with different functional groups (such as carboxylic, alkenes, and alkynes) attached to the same ring structure. For example, a trisubstituted carboxylic acid can have one carboxyl group attached to each side of the carbon atom. This compound is named by its chemical formula: