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4-ACETYLPHENOXYACETIC ACID CAS1878-81-5Building Blocks, C10, Carbonyl Compounds, Carboxylic Acids, Chemical Synthesis,
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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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4-AMINOTOLUENE-3-SULFONIC ACID CAS88-44-8Dye intermediate. 4B acid and 2, 3- acid can be prepared by coupling, pigment red 6B, vertical cable Bao red BK; coupling and 2- naphthol, can make pigment yellow bright red BL. These pigments are widely used in printing ink, plastic, rubber, wire and cable, daily chemical products such as coloring