brasilin
brasilin , noun
[Compare French brésiline. See 2d Brazil.]
(Chemistry) A substance, C16H14O5, extracted from brazilwood as a yellow crystalline powder which is white when pure. It is colored intensely red by alkalies on exposure to the air, being oxidized to bra*sil"e*in ({not transcribed}), C16H12O5, to which brazilwood owes its dyeing properties.
Also: brasilein