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Benzoic acid,2-hydroxy-5-[2-(4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:2)

Benzoic acid,2-hydroxy-5-[2-(4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:2) structure

CAS No.: 6408-85-1

Chemical Name:: Benzoic acid,2-hydroxy-5-[2-(4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:2)

Synonyms: Mordant Yellow 28;C.I.Mordant Yellow 28:C.I.14090;Benzoic acid,2-hydroxy-5-[2-(4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:2)

CBNumber:: CB33293022

Molecular Formula:: C17H12N2Na2O6S**

Molecular Weight:: 418.33152

MDL Number:

MOL File:: 6408-85-1.mol

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Benzoic acid,2-hydroxy-5-[2-(4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:2) Chemical Properties,Uses,Production

Preparation

4-Aminonaphthalene-1-sulfonic acid diazotization, and 2-Hydroxybenzoic acid coupling.

Properties and Applications

dark red light yellow. Soluble in water for green light yellow, moderate soluble in ethanol for green yellow. In concentrated sulfuric acid for magenta, yellow as after diluted. Dye aqueous solution to join concentrated hydrochloric acid for yellow; Join concentrated Sodium hydroxide solution for yellow brown.

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

Benzoic acid,2-hydroxy-5-[2-(4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:2) Preparation Products And Raw materials

Raw materials

Salicylic acid Naphthionic acid

Preparation Products

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Benzoic acid,2-hydroxy-5-[2-(4-sulfo-1-naphthalenyl)diazenyl]-, sodium salt (1:2) Mordant Yellow 28 C.I.Mordant Yellow 28:C.I.14090 6408-85-1 C17H12N2O6S2Na