Menthol, a cyclic monoterpene. Flammable, burning well, no smoke in combustion. It is colorless needle-like or prismatic crystals or white crystalline powder; it has a special aroma of mint and tastes cool after the initial burning; ethanol solution shows neutral reaction. The product is extremely soluble in ethanol, chloroform, ether, liquid paraffin or volatile oil, and very slightly soluble in water.