• 我要登录|
  • 免费注册
    |
  • 我的丁香通
    • 企业机构:
    • 成为企业机构
    • 个人用户:
    • 个人中心
  • 移动端
    移动端
丁香通 logo丁香实验_LOGO
搜实验

    大家都在搜

      大家都在搜

        0 人通过求购买到了急需的产品
        免费发布求购
        发布求购
        点赞
        收藏
        wx-share
        分享

        Alkaloids

        互联网

        545
        Alkaloids are a diverse group of organic bases containing secondary, tertiary, or cyclic amines. Some 5500 alkaloids are known, comprising the largest single class of secondary plant substances. There is no one definition of the term alkaloid , which is completely satisfactory, but alkaloids generally include “those basic substances which contain one or more nitrogen atoms, usually in combination as part of a cyclic system.” (1) Chemically, alkaloids are a very heterogeneous group, ranging from simple compounds like coniine, the major alkaloid of hemlock, Conium maculatum , to the pentacyclic structure of strychnine, the toxin of the Strychnos bark. Many alkaloids are terpenoid in nature, and some (e.g., solanine, the steroidal alkaloid of the potato, Solanum tuberosum ) steroidal. Others are mainly aromatic compounds (e.g., colchicine).
        ad image
        提问
        扫一扫
        丁香实验小程序二维码
        实验小助手
        丁香实验公众号二维码
        扫码领资料
        反馈
        TOP
        打开小程序