Agent Name

1-Amino-2-naphthol-4-sulfonic acid

CAS Number

116-63-2

Formula

C10-H9-N-O4-S

Major Category

Nitrogen Compounds

Synonyms

1,2,4-Acid; 1-Amino-4-sulfo-2-naphthol; 2-Hydroxy-4-sulfo-1-naphthylamine; 4-Amino-3-hydroxy-1-naphthalenesulfonic acid; 4-Amino-3-hydroxynaphthalenesulfonic acid; 1-Naphthalenesulfonic acid, 4-amino-3-hydroxy-; 4-Amino-3-hydroxynaphthalene-1-sulphonic acid; [ChemIDplus]

Category

Naphthylamines

Description

White or grey solid; May turn pink on light exposure (especially if moist); [Merck Index] White or pink powder; [Alfa Aesar MSDS]

Sources/Uses

Used to make azo dyes and 1,2-naphthoquinone-4-sulfonic acid; [Merck Index]

Comments

A skin and strong eye irritant; [Alfa Aesar MSDS] See "4-Aminophenol hydrochloride."

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