triarylmethane dye


Definition of triarylmethane dye

: any of a class of basic, acid, mordant acid, and direct dyes derived from triphenylmethane or diphenyl-naphthyl-methane usually by introduction of one or more auxochromic groups (as amino, methylamino, dimethylamino, or hydroxyl groups) and characterized in general by brilliance but not by fastness — see triphenylmethane dye

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History and Etymology for triarylmethane dye

triaryl + methane

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