Do you know DL Menthol?
Menthol is a rarely used traditional Chinese medicine, which is a colorless and transparent needle shaped or prismatic crystal, or a white crystalline powder. The crystal length varies, with a length of about 3cm and a thickness of about 0.3cm. It is fragile when twisted by hand. There is a mint aroma, and the taste is initially hot and then cool. Colorless and transparent, with a strong odor is preferred. Menthol is extracted from the leaves and stems of peppermint, with white crystals and a molecular formula of C10H20O. It is a colorless transparent needle shaped or hexagonal prism shaped crystal. There is a special cool mint aroma and fragrance, presenting a cool, ether, and spicy aroma. Sublimative and with a mint aroma, the taste is initially hot and then cool, easily volatile, and the ethanol solution is neutral. It is highly soluble in ethanol, chloroform, ether, liquid paraffin or volatile oil, and only slightly soluble in water.
