Radix Scutellariae was examined by Silca gel-G, the mobile phase was ethyl acetate-butanone-formic acid-water (5:3:1:1).

黄芩：采用硅胶G板，以醋酸乙酯-丁酮-甲酸-水（5：3：1：1）为展开剂，显色剂为1％三氯化铁乙醇溶液。

youdao

Synthesis of coumarin-3-carboxylic acid through sodium ethoxide catalyzed synthesis of coumarin -3-carboxylic acid ethyl ester, followed by saponification, acidolysis cyclization was studied.

实验以水杨醛、丙二酸二乙酯为原料，乙醇钠为催化剂催化合成香豆素- 3 -羧酸乙酯，再经皂化、酸解环合合成香豆素- 3 -羧酸。

youdao

A simple TLC method for monitoring the synthetic process of 3-bromo-ethyl levulinate is reported, and the reaction condition is optimized.

用薄层色谱法监测溴素溴化乙酰丙酸乙酯生成3-溴乙酰丙酸乙酯的反应过程，优化了反应条件，方法简单，快速，准确。

youdao

Vascepa contains ultra-purified ethyl EPA, an omega-3 fatty acid.

FORBES: FDA Approves Vascepa, A New Fish Oil Pill From Amarin

Another key point: Vascepa contains purified ethyl EPA, an omega-3 fatty acid, but does not contain significant amounts of docosahexaenoic acid, or DHA, another omega-3 fatty acid that is a major component of non-prescription fish-oil pills, as well as Lovaza.

FORBES: For Amarin And Its Fish Oil Pill, Another FDA Delay