9-(dimethylamino)-5-((4-(dimethylamino)phenyl)amino)benzo[a]phenoxazin-7-ium chloride

(a) Meldola Blue (C.I.B asic Blue 6, C.I. 51175) and N1,N1-dimethylbenzene-1,4-diamine condensation; (b) Naphthalen-2-ol and big excessive N,N-dimethyl-4-nitrosobenzenamine hydrochloride in hot ethanol in response.

navy blue. Soluble in water and ethanol to blue. For the strong sulfuric acid in green, diluted into grey purple, then change to blue. The dye solution to join sodium hydroxide dissolved in the ether generated brown precipitation.

Standard( Cotton )	Light Fastness	Persperation Fastness		Ironing Fastness		Soaping
		Fading	Stain	Fading	Stain	Fading	Stain
ISO	3	1-2		3		1-2