2,5-Dichlorobenzimidazole is primarily utilized in the synthesis of pharmaceutical compounds, particularly in the development of antiviral and anticancer agents. Its structure serves as a key intermediate in creating molecules that inhibit viral replication or target cancer cells. Additionally, it is employed in organic chemistry research for constructing complex heterocyclic compounds, which are valuable in drug discovery and material science. The compound’s chlorine atoms enhance its reactivity, making it a versatile building block for modifying and optimizing bioactive molecules.