betulin
'betjulin
基本解释
桦木脑, 桦木醇, 白桦脂醇
英文释义
n. A substance of a resinous nature, obtained from the outer
bark of the common European birch (Betula alba), or from the tar
prepared therefrom; -- called also birch camphor.
上一个单词：betulicole
下一个单词：betulinic acid