the pure product is no color transparent liquid. the color is like to ester, specific gravity:1.191(25/4).boiling point:71.5-72��(7mmhg).refracting power:1.4684(at 25��).melting point:-75�� max. the industrial product is in light-yellow color. it is not dissolved in water, easy dissolved in fat series & fragrant series that belong to organic solvent. alcoholysised in alcohol and sodium alcohol. it is stable under indoor temperature. it is operated slowly when the temperature is below 100��.