Benzene-1,2,4-triamine dihydrochloride is primarily used in the synthesis of dyes and pigments, particularly in the production of hair dyes and textile colorants. Its structure allows it to act as an intermediate in the formation of complex dye molecules, providing vibrant and long-lasting colors. Additionally, it finds application in the development of photographic chemicals, where it contributes to the creation of light-sensitive compounds used in film processing. In research, it serves as a building block for organic synthesis, aiding in the study of new chemical reactions and materials. Its role in these industries highlights its importance in creating functional and visually impactful products.