“苯甲基”造句
2024年06月26日 05:01:03
發(fā)現(xiàn)在酸性低粘度醇類(lèi)溶劑中,五甲氧基三
苯甲基正離子的褪色現(xiàn)象.
It was observed that the pentamethoxyl red was fading in atidity and viscose alcohol.
目的探討西替利嗪的中間體1-犤 ( 4- 氯苯基 )
苯甲基 犦 - 哌嗪的合成方法的改進(jìn).
Objective To study improved synthetic method of 1 - [ ( 4 - chlorophenyl ) phenylmethyl ] - piperazine, the intermediate of cetirizine hydrochloride.
介紹了三
苯甲基自由基 、 三
苯甲基正離子和三
苯甲基負(fù)離子的實(shí)驗(yàn)方法.
The experimental method of triphenyl methyl radical, triphenyl methyl cation and triphenyl methyl anion were reviewed.