2-Hydroxy-5-[[3-[(2-hydroxy-5,7-disulfo-1-naphtyl)azo]-4-methylphenyl]carbonylamino]benzoic acid trisodium salt

CAS NO.：5863-94-5
Molecular Weight: 0

What is 2-Hydroxy-5-[[3-[(2-hydroxy-5,7-disulfo-1-naphtyl)azo]-4-methylphenyl]carbonylamino]benzoic acid trisodium salt?

Preparation

3-Amino-4-methyl-3′-carboxy-4′-hydroxybenzanilide?diazotization, and 2-Naphthol-5,7-disulfonic acid?coupling.

Properties and Applications

red orange. Soluble in water for golden orange, right amount soluble in ethanol to golden brown. In concentrated sulfuric acid for golden orange, orange for gold after diluted. Dye aqueous solution to join concentrated hydrochloric acid for orange; Join concentrated sodium hydroxide solution for brown light orange.

Standard	Ironing Fastness	Light Fastness	Fulling		Persperation Fastness	Soaping	Water
			Alkali	Acid
ISO	2-3	1-2	3		3	4	5

Safety information for 2-Hydroxy-5-[[3-[(2-hydroxy-5,7-disulfo-1-naphtyl)azo]-4-methylphenyl]carbonylamino]benzoic acid trisodium salt

New Products

COBALT AAS SOLUTION HYDROXYLAMINE HYDROCHLORIDE SOLUTION 10% THOMALIT BLUE LITMUS PAPER 1 BOX SILVER NITRATE N/10 CVS GLASS BEADS 3.5 TO 4.5 MM POTASSIUM AAS SOLUTION Azithromycin Imp D Atracurium Besylate EP Impurity C Ceftaroline fosamil Acetate Hydrate Clarithromycin EP impurity F Clarithromycin EP Impurity D Clindamycin B

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