Thymol CAS 89-83-8 is a white crystalline or crystalline powder with the aroma of thyme oil. Relative density d15150.979, melting point 48-51 ℃, boiling point 223 ℃, refractive index nD20@1.523 。 Soluble in organic solvents such as ethanol, slightly soluble in water and glycerol. It has strong corrosive effect.