Colorless obliquity crystal. Melting point 92 ° C (88-90 ° C), boiling point 183-184 ° C (1.87kPa). 1g the product is soluble in about 2500mL water, 5mL ethanol, 2mL chloroform, 4mL ether or 30-50ml almond and olive oil, also soluble in dilute acids. Stable in the air, odorless, bitter taste.
Description: colorless oblique-square crystal. Melting point 92 ° C (88-90 ° C), boiling point 183-184 ° C (1.87kPa). 1g the product is soluble in about 2500mL water, 5mL ethanol, 2mL chloroform, 4mL ether or 30-50ml almond and olive oil, also soluble in dilute acids. Stable in the air, odorless, bitter taste.
USES: Local anesthetic, used for wound, ulcer and hemorrhoid pain, is also antitussive medicine to retreat the intermediate.