What is an orange-red nitrogenous dyestuff produced artificailly 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 called?

safranine — An orange-red nitrogenous dyestuff produced artificailly 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. (Webster's 1913.)