Skip to Content
Medical Term:


Pronunciation: aw′rin

Definition: 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

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.