Used primarily in hair dye formulations to achieve a range of shades, particularly darker tones. It acts as a key intermediate in the synthesis of dyes, enabling the creation of long-lasting and vibrant colors. Additionally, it finds application in photographic developers, where it aids in the reduction of silver halides to metallic silver, producing high-quality images. Caution is advised as it may cause skin and eye irritation. Its role in these industries highlights its importance in both cosmetic and imaging technologies.