Product: menthol crystal usp /bp, identification: colorless shiny and strong crystals with characteristics odor.\n\npurity (%):≥98.0, melting point : 42~44℃ specific rotation: -45°~-51°, non-volatile matter: not overrun 0.05% under condition of 105℃ package: 25kg fibre drum, usage: it can be used as medical and food additives and flavors.