Guaiacol is fine chemical product widely used in flavor and medical industry. Specifications:Appearance: colorless to light yellow clear liquid.Purity (by GC): 99.5% minFreezing Point: 27.0-29.0°cHeavy Metal (Pb): 10mg/kg maxArsenic content: 3mg/kg max Packing: In 200kg PVF drums or as per customer's request. Guaiacol