aniline dye

…German chemist whose research on aniline, with that of Sir William Henry Perkin, helped lay the basis of the aniline-dye industry.

…in England, made the first aniline dye (1856) as a result of abortive attempts to synthesize quinine, the sole antimalarial drug available at that time. About 30 years later, Ehrlich found that a synthetic dye, methylene blue, has antimalarial properties. He had been led to this by a study of…

…a British chemist who discovered aniline dyes.