4-Amino-1-Naphthalenesulfonic Acid Sodium Salt Hydrate

Sodium naphthionate has several important applications:

• Dye Production: It is widely used as an intermediate in the manufacture of azo dyes, particularly acidic and direct dyes due to its ability to form stable complexes with metal ions.
• Antidote: The compound serves as an antidote for nitrite and iodine poisoning, providing a therapeutic avenue for treating specific toxic exposures.
• Pigment Manufacturing: Sodium naphthionate is also utilized in producing edible red pigments, emphasizing its versatility beyond industrial applications.

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