水杨酸

The primary synthetic methods of 4-hydroxycoumarin was reviewed starting from phenol, 2-acetylsalicylic acid, methyl salicylate, and o-hydroxyacetophenone respectively.

概述了4-羟基香豆素合成方法，重点介绍了苯酚法，水杨酸法，水杨酸甲酯法，邻羟基苯酮法。

The recovered hydrogenate has more impurity, so a new purification method was usedwhichsettl-ed the tail peak problem in finished Doxycycline Hyclate.

采用向盐酸多西环素精制母液中加5-磺基水杨酸和水方法,从精制母液中回收出氢化物,并确定了最佳配比。

Mild cases of diarrhea are treated with Bismuth subsalicylate (trade name Pepto-Bismol); extreme cases are treated with fluid and electrolyte replacement while the underlying disease passes.

症状较轻可用次水杨酸铋治疗,严重时体液和电解质。

Approximately 30 compounds have been identified in the aroma of green tea, the major ones being benzyl alcohol, phenylethyl alcohol, a hexenol, linalool, geraniol and methyl salicylate.

约有30种化合物已从绿茶香气中鉴别出来，其中主有苯甲醇、苯醇、已烯醇、沉香醇、香茅醇和甲基水杨酸酯。