1H-Benzo[d]imidazole-5,6-diamine dihydrochloride is primarily used as an intermediate in the synthesis of various organic compounds, particularly in the pharmaceutical industry. It plays a key role in the production of certain drugs, including antiretroviral medications used in the treatment of HIV/AIDS. Additionally, it is utilized in the development of dyes and pigments due to its ability to form stable and vibrant colorants. In research, this compound is often employed in the study of heterocyclic chemistry, where it serves as a building block for creating complex molecules with potential biological activity. Its versatility makes it valuable in both industrial and academic settings.