Used primarily in the synthesis of dyes and pigments, 2-Amino-5-ethylphenol hydrochloride serves as a key intermediate in the production of colorants for textiles, inks, and plastics. Its role in the creation of azo dyes is particularly significant, contributing to vibrant and stable colors. Additionally, it finds application in organic synthesis, where it is utilized to build complex molecules in pharmaceutical research. The compound is also employed in the development of photographic chemicals, aiding in the enhancement of image quality and stability. Its versatility makes it valuable in various industrial and research settings.