1. Magenta was discovered by Emmanuel Verguin in 1858 while researching aniline dyes . 2. The reds in the blankets from after 1870 were from aniline dyes . 3. William H . Perkin, a student of Hofmann, synthesized the first aniline dye . 4. His doctor asked if he had ever worked with aniline dyes . 5. The aniline dye malachite green is prepared from benzaldehyde and dimethylaniline. 6. Later, aniline dyes added another dimension of color and design. 7. Other aniline dyes followed, such as fuchsine, safranine, and induline. 8. Aniline dyes have a very short working time; most professionals apply them by spraying.9. In 1856, the English chemist William Henry Perkin invented the first aniline dye , mauveine. 10. Heterocycles are commonly found in a wide range of products including aniline dyes and medicines.
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