paeonin

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}. [1913 Webster]

{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}. [1913 Webster]