Aniline Dyes

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A class of synthetic, organic dyes originally obtained from aniline (coal tars),and were the first synthetic dyes. Today the term is used with reference to any synthetic organic dyes and pigments, in contrast to animal or vegetable coloring materials, and synthetic inorganic pigments. Aniline dyes are classified according to their degree of brightness or their light fastness. Also called “coal tar dyes.”

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