Used as an intermediate in the synthesis of anthraquinone dyes and pigments, particularly for vat dyes that are applied in dyeing cotton, wool, and silk. It plays a key role in the production of colorants with high light and wash fastness. Also utilized in the preparation of functionalized anthraquinones for electrochemical applications, including organic redox flow batteries. Its bromine group allows for further chemical modifications through coupling reactions, making it valuable in organic synthesis and materials science.