1、

Levocetirizine Dihydrochloride was prepared from benzoyl chloride by acidylation, hydrogenation, cyclization with an overall yield of 8.05 %.

以苯甲酰氯为原料,经酰化, 还原, 环合等反应合成左旋西替利嗪盐酸盐,反应总收率为8.05%.

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2、

Methods: The nitrite was detected from samples by N-Naphthylethylenediamine Dihydrochloride.

方法用盐酸萘乙二胺法检测样品中的亚硝酸盐.

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3、

Single crystal of dihydrochloride was cultivated by natural cooling method according to its characteristic of solubility.

根据盐酸大观霉素的溶解度特性,采用自然冷却法培养出单晶.

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4、

The results indicate that arte-sunate is significantly superior to quinine dihydrochloride in both aspects.

结果表明,青蒿琥酯的杀虫速度比二盐酸奎宁快,治愈效果优于二盐酸奎宁.

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5、

The resultant hydrolytic reaction product is dihydrochloride.

所形成的水解反应物是二盐酸.

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6、

The resultant hydrolytic reaction product is methylenedioxyamine dihydrochloride.

所形成的水解反应物是二盐酸甲撑二氧胺.

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7、

The Food and Drug Administration's ( FDA) has ruled that the vitamin B6 compound, pyridoxamine dihydrochloride, cannot be used in dietary supplements.

美国食品药品管理局条列规定,复合维生素B6,盐酸吡哆胺不能用在膳食补充剂中。

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