Aurin

enUK

Au´rin

(ạ´rĭn)

(Chem.) A red coloring matter derived from phenol; - called also, in commerce, yellow corallin.

aurin

enUK

aurin

[′ȯr·ən] (organic chemistry) C₁₉H₁₄O₃ A derivative of triphenylmethane; solid with red-brown color with green luster; melting point about 220°C; insoluble in water; used as a dye intermediate.

aurin

enUK

au·rin

(aw'rin), A triphenylmethane derivative used as an indicator (changes from yellow to red at pH 6.8-8.2) and as a dye intermediate; also used to help differentiate tubercle bacilli from other acid-fast microorganisms. Synonym(s): corallin, p-rosolic acid

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