CORALLIN

Cor"al*lin, n. Etym: [So named in allusion to the color of red corallin, fr. L. corallum coral.] (Chem.)

Definition: 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 pæonin.

– Yellow corallin. See Aurin.

Source: Webster’s Unabridged Dictionary 1913 Edition