From the nut kernels of Schleichera trijuga Willd., Sapindaceae (Ceylon oak). Habit. India, Burma, Ceylon, Java. Constit. Glycerides of oleic acid 60%, arachidic 20-25%, palmitic 5-8% stearic 2-6%; free acetic acid 1-2%. Unsaponifiable matter 1.5-3% (this may include cyanide-containing glycosides which are removed by careful refining). Reviews: Sen-Gupta, J. Soc. Chem. Ind. London 39, 88T (1920); Dhingra et al., ibid. 48, 281T (1929).