Character:  It is white crystal powder with fragrant smell. It is easily soluble in ethyl alcohol, trichloromethane or diethyl ether and is nearly insoluble in water. Melting point is 204～209℃.
Content testing:  gas chromatographic method C10H18O content: ≥95.0%。
Property and flavor:  pungent, bitter and cool in nature
Main function: inducing resuscitation, clearing heat; for therapy of pyreticosis, phlegm syncope, sudden deafness, chest stuffiness and pains, aphtha, swollen sore throat
Dosage: 0.3～0.9g
Storage: in seal in cool place