Xyloquinone

from The Collaborative International Dictionary of English v.0.48

Phlorone \Phlo"rone\, n. [Phlorol + quinone.] (Chem.)
   A yellow crystalline substance having a peculiar unpleasant
   odor, resembling the quinones, and obtained from beechwood
   tar and coal tar, as also by the oxidation of xylidine; --
   called also {xyloquinone}.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Xyloquinone \Xy`lo*qui"none\, n. [Xylene + quinone.] (Chem.)
   Any one of a group of quinone compounds obtained respectively
   by the oxidation of certain xylidine compounds. In general
   they are yellow crystalline substances.
   [1913 Webster]

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