commonly known as Delphine Blue. aniline and mordant Gallocyanine?[by excessive amounts of N,N-dimethyl-4-nitrosobenzenamine and Gallic acid?Methanol in the reaction (in ethanol in reaction incomplete) and be] hydrochloride heating, sulfonation and translated into sodium salt. Note: in order to improve yield, in heating to prevent leuco – mordanting Gallic acid formation (the leuco not with ?aniline?condensation), to the mixture blast air.
