7-Bromobenzo[d][1,2,3]thiadiazole is primarily used as an intermediate in organic synthesis, particularly in the development of pharmaceuticals and agrochemicals. Its structure makes it valuable for constructing more complex molecules, especially those with potential biological activity. In medicinal chemistry, it serves as a building block for creating compounds that may exhibit antimicrobial, antiviral, or anticancer properties. Additionally, it is utilized in the synthesis of dyes and materials for optoelectronic applications due to its ability to influence electronic properties. Its role in cross-coupling reactions also makes it significant in the production of advanced materials and fine chemicals.