safranine

A coal-tar color used in dyeing, obtained by oxidizing a mixture of amido-azotoluene and toluidine. It gives yellowish-red shades on wool, silk, and cotton, and is fairly fast to light.

An orange-red nitrogenous dyestuff produced artificially by oxidizing certain aniline derivatives, and used in dyeing silk and wool; also, any one of the series of which safranine proper is the type.

any of a class of red to blue azine dyes

any of a class of chiefly red organic dyes