Menthol is an organic compound made synthetically or obtained from corn mint, peppermint or other mint oils. It is a waxy, crystalline substance, clear or white in color, which is solid at room temperature and melts slightly above. The main form of menthol occurring in nature is ()-menthol, which is assigned the (1R, 2S, 5R) configuration. Menthol has local anesthetic and counterirritant qualities, and it is widely used to relieve minor throat irritation. Menthol also acts as a weak kappa opioid receptor against. Appearance at 200 C: Crystalline solid Color: Colorless Refractive Index: 1.3700 1.3750 Optical Rotational: -51 to -48 Melting Point (0C): 41 44 Flash Point: 93 Solubility: Slightly soluble in water Taste: Slightly soluble in water Shelf Life: Best before 60 month from the date of manufacturing Acidity/ Alkalinity: Neutral to litmus Uses:- Menthol, a natural product of the peppermint plant Mentha x piperita (Lamiaceae), is a monoterpene which is widely used as a natural product in cosmetics, a flavoring agent, and as an intermediate in the production of other compounds.