Answer: fuchsin

AnswerCrossword Clue
fuchsina red dye, also FUCHSINE
fuchsina dye that is produced by oxidation of a mixture of aniline and toluidines and yields a brilliant bluish red
fuchsingreenish, water-soluble, solid, coal-tar derivative, obtained by the oxidation of a mixture of aniline and the toluidines, that forms deep-red solutions: used chiefly as a dye