1-Chloro-2-methyl-2-phenylpropane is primarily used as an intermediate in organic synthesis, particularly in the production of pharmaceuticals and agrochemicals. Its structure makes it a valuable building block for creating more complex molecules, especially those involving phenyl and alkyl groups. It is also utilized in research and development for studying reaction mechanisms, particularly in nucleophilic substitution reactions, due to the presence of the chloro group. Additionally, it can serve as a precursor in the synthesis of fragrances and specialty chemicals, leveraging its aromatic and aliphatic properties.