The Collaborative International Dictionary
Rufol
Rufol \Ru"fol\, n. [L. rufus reddish + -ol.] (Chem.) A phenol derivative of anthracene obtained as a white crystalline substance, which on oxidation produces a red dyestuff related to anthraquinone.
Wiktionary
rufol
n. (context chemistry English) A phenol derivative of anthracene which on oxidation produces a red dyestuff related to anthraquinone.