• 研究了紫外分光光度和气相色谱法测定1,2,3-三甲氧基苯含量方法提出了测定实验条件

    Methods of gas chromatography and UV-spectrophotometry for determination of 1,2,3-trimethoxybenzene content were studied. Test conditions of the methods were proposed.

    youdao

  • 甲酚原料经溴化、水解氧基4反应合成药物中间体3,4,5-三甲氧基苯甲醛,收率53

    The 3,4,5 trimethoxybenzaldehyde is synthesized from p cresol in four steps of bromination, hydrolyzation, methoxylation, and methylation, with an overall yield of 53.

    youdao

  • 甲酚原料经溴化、水解氧基4反应合成药物中间体3,4,5-三甲氧基苯甲醛,收率53

    The 3,4,5 trimethoxybenzaldehyde is synthesized from p cresol in four steps of bromination, hydrolyzation, methoxylation, and methylation, with an overall yield of 53.

    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