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- Conversion of an optically active substance to a racemic form. 外消旋转化将光学活性物质转化为外消旋形式
- conversion of an optically active substance to a racemic form 将光学活性物质转化为外消旋形式
- Keywords Lipas Optically active substance Resolution Catalysis; 脂肪酶;光学活性化合物;拆分;催化;
- optical active substance 光活性物质
- Showing no optical activity in polarized light. 无旋光的极化光下无光学反应的
- mixed optical activity substances 混合旋光物质
- They often contain no active substance, or not enough to work. 他们一般没有实质作用或者没有起到足够的作用.
- Under the optimum conditions,the content of active substance could reach 40%. 在此条件下合成的产物中活性物含量可达40%25。
- EMEA :Note For Guidance On Chemistry of The New Active Substance, 2003. 中国医药科技出版社,2002,第一版。
- Furthermore, the spiral structure is the main reason for optical activeness of substance. 而由旋光方向和大小也可以推断其构型和构象。
- optically active substance 旋光物
- Conclusion: Biological active substance from Hp regulates gene expression through SRE cis-element. 结论:幽门螺杆菌生物活性物质通过顺式转录调控元件SRE调控细胞基因表达。
- The results showed the surface active substance produced by B1and B2 had high endurance to heat, salt and acid. 表明,B1、B2产生的表面活性物质对热、酸和盐具有较强的耐性;
- Racemization is found with optically active substrate substrates. 发现旋光基质有外消旋作用。
- That company has rights to market the active substance in Sustiva in a number of countries outside the United States. 该公司有权在美国以外的一些国家的市场Sustiva为活动内容。
- Optical active ethyl 4-cloro-(R)-3-hydroxybutyrate was prepared by stereo selective bioreduction of ethyl 4-chloro-acetoacetate with baker's yeast. 以4 氯乙酰乙酸乙酯为原料,以面包酵母为手性生物催化剂,选择性合成光学活性4 氯 (R) 3 羟基丁酸乙酯。
- Counterfeit drugs are sold under the names of real medicines. They often contain no active substance or not enough to work. 假冒药品用真药品名称出售。他们往往不包含活跃的物质或不能充分工作。
- Influence of the Optical Activity of BSO on Spatial Light Modulator[J]. 引用该论文 孔迪;杨建坤;李修建;刘菊.
- Auricularia Auricular polysaccharide,a physiological active substance,was very hot recently. 黑木耳多糖作为一种生理活性物质,近年来日益受到人们的重视。
- The optical activity of a molecule is not determined by its chirality. 旋光性不是由手性决定的,因为手性是人为抽象出的一种概念。