Used primarily as an intermediate in the synthesis of azo dyes and pigments, this compound plays a key role in the development of colored compounds for textiles, inks, and coatings. Its reactivity allows for coupling reactions that form complex aromatic systems with strong chromophoric properties. It is also employed in research settings for the preparation of specialized diazo compounds in organic synthesis and in laboratory quantitative analysis of certain metals, where it forms clear colored complexes for easy detection and measurement. Due to its instability and potential hazards, it is handled under controlled conditions and not used in end-product formulations.