An alkaloid, C19H22N2O, derived from the bark of various cinchona trees and used as an antimalarial agent.

 
  • 金雞納寧,辛可寧一種生物堿,c19h22n2o,由金雞納樹(shù)的樹(shù)皮中制得,用作抗瘧疾劑
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan