A volatile oil obtained by the destructive distillation of amber and purified by subsequent rectification.

Characters. - A colourless pale yellow thin liquid, having an ernpyreu-matic balsamic odour, a warm acrid taste, and a neutral or faintly acid reaction. Readily soluble in alcohol.

Dose. - 5 to 10 minims in capsule.

Action and Uses. - Externally it is stimulant and may be used like oil of turpentine. Internally it is said to be antispasmodic.