The Collaborative International Dictionary
Red corallin
Corallin \Cor"al*lin\, n. [So named in allusion to the color of red corallin, fr. L. corallum coral.] (Chem.) A yellow coal-tar dyestuff which probably consists chiefly of rosolic acid. See Aurin, and Rosolic acid under Rosolic.
Red corallin, a red dyestuff which is obtained by treating aurin or rosolic acid with ammonia; -- called also p[ae]onin.
Yellow corallin. See Aurin.