Menthol Crystal Color and Appearance: Colorless,Transparent prism-Shaped or needle-like crystals Odor: Asian spicies with the characteristics of natural menthol Melting point:42-44 degree Solubility: 1g:5ml (90%) Non volatile matter:less than 0.05% Optical rotation(25degree) -49~-50 degree As content: Less than 3mg/kg Heavy Metal (as Pb): Less than 10mg/kg L-menthol (GC) : 99%min Standard: CP2005,BP/USP/EP Packing:25kg Drums