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3-AMINO-4-METHOXYBENZOIC ACID CAS2840-26-8Mainly used for cotton, linen, printing dyeing and organic pigment and paint manufacturing
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4-Amino-1-naphthalenesulfonic Acid CAS84-86-6Used as a dye intermediate, is also used for food coloring.
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5-AMINO-1-NAPHTHALENESULFONIC ACID CAS84-89-9For the preparation of acid dyes and reactive dyes, intermediates and 1- naphthol -5- sulfonic acid