brasilin /(?)/

bras·i·lin

brasilin

n.
  1. 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 (), C16H12O5, to which brazilwood owes its dyeing properties. (Chem.)