The clove buds, stem and leaves, on steam distillation, yield a substantial amount of essential oil. The clove bud oil, derived from the dried buds by steam distillation, contains free eugenol, eugenol acetate and caryophyllene. The stem oil contains more free eugenal than the bud oil, besides eugenol acetate, in small quantity. The leaf oil contains much less of total eugenol than the bud oil and a very small quantity of eugenol acetate. Appearance: Colorless to light yellow liquid Odor: Eugenol aroma and spicy bitter Relative density: 1.038 ~ 1.060 Refractive index: 1.527 ~ 1.535 Optical rotation: -1.5°~0° Solubility: 1ml soluble in 2ml 70% ethanol Content: contain eugenol not less than 85% Uses: - The oil is used for treating a variety of health disorders including toothaches, indigestion, cough, asthma, headache, stress and blood impurities.