Obtained by destructive distillation of the
bark and wood of Betula alba L., Betulaceae (white
birch). Constit. Oil turpentine, other isomeric hydrocarbons,
various empyreumatic resins, guaiacol, cresol, pyrocatechol, betulin.
Properties
Black, viscid liquid; characteristic odor. d 0.926-0.955. Partly
sol in alcohol; sol in chloroform, fats, oils.