Objective To investigate the composition and preparation method of galanthamine hydrobromide dispersion tablets.

目究氢溴加兰他敏分散片处方组成及制备工艺。

What are the chemical reaction characteristics of tropane alkaloids?

氢溴东莨菪碱鉴别原理是什么？

Bromooctane was synthesized from industrial hydrobromic acid(48%) and n-octanol using concentrated sulfuric acid as catalyst.

以工业废氢溴(48%)为原料,在浓硫存在下,与正辛进行反应合成1-溴辛烷。

Ethyl lauryl alcohol respectively react with hydrobromic acid to product bromohydrocarbon,sulfuric acid for catalyst。

以正十二和氢溴为原料,在浓硫催化下,生产溴十二烷。

Objective : A method of HPLC for the determination of complex preparations of guaiphenesin , chlorpheniramine maleate and dextromethorphan hydrobromide has been described Methods : C 18 column , 0.

建立一种采用高效液相色谱检测复方制剂中氢溴芬、愈创木酚甘油醚和马来氯苯那敏含量方法。

Using 2-acetyl benzimidazole and sodium bromide as raw material,2-(dibromine acetyl)-benzimidazole hydrobromate was synthesized with the new bromine that displaced by chlorine gas in light.

以2-乙酰基苯并咪唑和溴化钠为原料,在光照条件下用氯气置换出溴化钠中溴素,合成兽药噻苯咪唑中间体-2-(二溴乙酰基)-苯并咪唑氢溴盐。