How did coal tar contribute to the growth of the synthetic dye industry?

The synthetic dye industry emerged directly from research into coal tar, which was initially considered an industrial nuisance and a waste product of gas lighting.12

Coal tar served as the essential raw material for the industry because it contained various organic compounds that could be isolated through distillation. The industry's growth was catalyzed in 1856 when William H. Perkin accidentally discovered the synthetic dye mauve while experimenting with aniline, a derivative of coal tar.12

Following this success, chemists began systematically isolating compounds from coal tar to create new dyes, transforming the substance into a highly valuable industrial resource. By 1900, more than 50 compounds had been isolated from coal tar, forming the foundation of the modern chemical industry. This research not only revolutionized textile manufacturing but also led to broader scientific advancements, including the development of chemotherapy and other pharmaceutical products.12