alizarine red

noun, often capitalized A&R

Definition of alizarine red 

: any of various red mordant or acid dyes most of which are derived from anthraquinone: such as

a : turkey red

b : an orange-yellow crystalline compound C14H7NaO7S used chiefly for dyeing and printing aluminum-mordanted wool scarlet red, as a biological stain, and as an analytical reagent (as for detecting aluminum); sodium 3-alizarin-sulfonate

called also Alizarine Carmine, Alizarine Red S, Alizarine S

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First Known Use of alizarine red

1874, in the meaning defined above

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