Rosolic

[Sarah]

Pertaining to, or designating, a complex red dyestuff (calledrosolic acid) which is analogous to rosaniline and aurin. It isproduced by oxidizing a mixture of phenol and cresol, as a dark redamorphous mass, C20H16O3, which forms weak salts with bases, andstable ones with acids. Called also methyl aurin, and, formerly,corallin.