As nouns the difference between dyestuff and rufol
is that dyestuff is any soluble pigment used for dyeing the hair, fabric etc while rufol is a phenol derivative of anthracene which on oxidation produces a red dyestuff related to anthraquinone.
dyestuff
English
Noun
(
en noun)
any soluble pigment used for dyeing the hair, fabric etc
rufol
English
Noun
(chemistry) A phenol derivative of anthracene which on oxidation produces a red dyestuff related to anthraquinone.
(
Webster 1913)