6-Amino-4-hydroxy-3-[[4-(sulfomethyl)phenyl]azo]-2-naphthalenesulfonic acid disodium salt

CAS NO.：6360-14-1
Molecular Weight: 0

What is 6-Amino-4-hydroxy-3-[[4-(sulfomethyl)phenyl]azo]-2-naphthalenesulfonic acid disodium salt?

Preparation

(4-Aminophenyl)methanesulfonic acid?diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid? coupling.

Properties and Applications

red light brown. Soluble in water for red orange brown. The strong sulfuric acid for red, diluted into orange. Adding strong hydrochloric acid in aqueous solution for orange; Add thick sodium hydroxide solution for orange brown.

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