7-Benzothiazolesulfonic acid, 2-[4-[4-[[4-[(3-aminobenzoyl)amino]-2-sulfophenyl]azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]phenyl]-6-methyl-, disodium salt

2-Amino-5-(3-nitrobenzamido)benzenesulfonic acid diazo, and 2-(4-(5-Hydroxy-3-methyl-1H-pyrazol-1-yl)phenyl)-6-methylbenzo[d]thiazole-7-sulfonic acid?coupled, then use the method will be reduced to amino nitro.

bright orange. Soluble in water for palm light orange, slightly soluble in ethanol for golden brown. The strong sulfuric acid for green light yellow, with golden yellow diluted. The dye solution to join strong hydrochloric acid has golden precipitation; Add thick sodium hydroxide solution for golden brown, precipitation.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
				Fading	Stain	Fading	Stain
ISO	4	5	2	3-4		3-4