• Umbelliferae plants mainly contain essential oil, coumarin, chromone and glycoside.

    伞形植物的成分主要挥发油香豆素、色原酮及其苷类

    youdao

  • Aloe chromone is a group of anti-inflammatory and anti-tyrosinase constituents found in aloe vera leaves.

    芦荟色酮芦荟叶中特有的一类具有抑制酪氨酸酶等作用的活性物质。

    youdao

  • 6-Hydroxychroman was prepared by catalytic hydrogenation of 6-hydroxy-4-chromone, which was prepared via condensation of 2′, 5′-dihydroxyacetophenone with triethyl ortho-formate.

    前言2′,5′-二羟基苯乙酮和原甲酸三乙酯缩合得到6- 羟基- 4- 色,再催化氢化得到标题化合物。

    youdao

  • 6-Hydroxychroman was prepared by catalytic hydrogenation of 6-hydroxy-4-chromone, which was prepared via condensation of 2′, 5′-dihydroxyacetophenone with triethyl ortho-formate.

    前言2′,5′-二羟基苯乙酮和原甲酸三乙酯缩合得到6- 羟基- 4- 色,再催化氢化得到标题化合物。

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定