The main components of induline are various substituted phenazines. Other aniline dyes followed, such as fuchsin, safranin, and induline. Other aniline dyes followed, such as fuchsine, safranine, and induline. Related to induline, it is a mixture of phenazine-based compounds. Two of the first synthetic dyes are aminophenazines, these include induline and nigrosin. Although induline no longer in use, the related dye nigrosin is still produced commercially. Induline is a derivative of the eurhodines (aminophenazines, aminonaphthophenazines). Induline is a dye of blue, bluish-red or black shades.