[1-[[6-[[4-(Benzoylamino)phenyl]amino]-1-hydroxy-3-sodiosulfo-2-naphthalenyl]azo]-4-[(4-hydroxy-3-sodiooxycarbonylphenyl)azo]-6-sodiosulfo-2-naphthalenyloxy]acetic acid sodium salt

5-Amino-2-hydroxybenzoic acid?diazo, and?2-(1-Amino-6-sulfonaphthalen-2-yloxy)acetic acid?coupling, again diazo, and 6-(4-Benzamidoanilino)-1-naphthol-3-sulfonic acid?coupling (finally coupling is with aqueous ammonia in Pyridine medium).

green light blue. Soluble in water for blue, slightly soluble in alcohol. In the dark for the strong sulfuric acid, diluted green solution for blue-ray, accompanied by precipitation. The dye solution to join strong hydrochloric acid have dark blue light green precipitation; With strong sodium hydroxide solution for blue light green, precipitation.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
				Fading	Stain	Fading	Stain
ISO	2-3	3-4	6	4		4