Isol. from essential oils, esp. citronella oils. Also present in citrus peel oil, kumquat peel oil, parsley seed oil, ginger, pepper, cocoa, lovage root and other foods. Prod. synthetically by hydrogenation of 3,7-Dimethyl-2,6-octadienal JGH37-H or hydrogenation of 3,7-Dimethyl-6-octen-1-ol JRJ33-M. Flavouring ingredient