 Cubebin (C20H20O6) is a crystalline substance existing in cubeb, discovered by Eugène Soubeiran and Hyacinthe Capitaine in 1839.It may be prepared from cubebene, or from the pulp left after the distillation of the oil.The drug, along with gum, fatty oils, and malates of magnesium and calcium, contains also about 1% of cubebic acid, and about 6% of a resin.