查询词典 carboxylic

The studies of inhibitory activity of different hydantoin ARIs substituted by acetic acid residue can greatly benefit the structure-based drug design of ARIs.Keywords aldose reductase inhibitors, fidarestat, carboxylic acid methyl, synthesis,inhibitory activity

所分析的不同海因类抑制剂用乙酸链取代后的化合物的抑制性可以为以结构为基础的ARIs药物设计提供很好的实验基础。

In accordance with the process, the hydroxy carboxylic acid serves to temporarily transfer chlorine from and does not form a salt with the alkali metal salt of a chlorite ion.

根据本方法。羟基羧酸用作暂时转移氯，并且与亚氯酸根离子的碱金属盐不生成盐。

A method for forming an aqueous chlorine dioxide solution is disclosed which includes reacting in a reaction vessel an acid reaction solution containing a hydroxy carboxylic acid and a companion acid with an alkali metal salt of a chlorite ion.

本发明公开了一种生成含水的二氧化氯溶液的方法，其中包括在反应容器中让含有羟基羧酸和配对酸的酸的反应溶液与亚氯酸根离子的碱金属盐进行反应。

The effects of the amino, hydroxyl, imidazole and carboxylic groups of Ser-Hison DNA cleavage reaction were studied.

此外，还发现Ser-His对5＇-TpTpdC-3＇具有切割活性。

A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more esters of aromatic dicarboxylic acid internal electron donors; one or more aluminum containing cocatalysts; a selectivity control agent comprising at least one silicon containing compound containing at least one C1-10 alkoxy group bonded to a silicon atom, and one or more activity limiting agent compounds comprising one or more aliphatic or cycloaliphatic carboxylic acids; alkyl-, cycloalkyl- or alkyl-ester derivatives thereof; or inertly substituted derivatives of the foregoing.

一种用于丙烯聚合的催化剂组合物，所述催化剂组合物包括：一种或多种齐格勒-纳塔主催化剂组合物，该主催化剂组合物包括一种或多种过渡金属化合物和一种或多种芳族二羧酸酯内部电子给体；一种或多种包含铝的助催化剂；选择性控制剂，该选择性控制剂包括至少一种包含硅的化合物，该化合物包括至少一种与硅原子连接的C 1-10 烷氧基；和一种或多种活性限制剂化合物，该活性限制剂包括一种或多种脂族或脂环族的单或聚羧酸类、其烷基-、环烷基-或烷基-衍生物、或上述惰性取代的衍生物。

The results showed that zinc ion in the polymer formed ionic bond and coordinative bond with carboxylic group. The studies on the film property of PZA indicated that the film highly tolerate water but its adherence was a little weak

并首次深入研究了该种聚合物的吸湿保水性，发现其吸湿性随环境湿度变化而变化，对环境具有很好的响应性；在加热蒸发过程中，具有比自由态的水慢的蒸发速率。

Although sulfuric group can ionize at any pH value, but the ionization degrees of carboxylic and phenolic group in the solutions increase with increasing pH values.

磺酸在所有pH范围完全电离，但羧酸和酚羟基的电离程度随溶液pH降低而减少。

Conclusion］ The method has higher sensitivity,accuracy and precision,could be applied to determine the contents of carboxylic ester,lactone and their complexes.

结论］分光光度法具有较高的灵敏度、准确度和精密度，适用于各种酯或内酯及混合酯总量的测定。

A series of inhibitors were made from different organic carboxylic acids as monoacid and binary acid to prevent the corrosion of cast aluminum in neutral cooling water.

为了提高中性冷却水系统中铸铝的耐腐蚀性能，通过极化电阻、稳态极化曲线和交流阻抗等电化学方法研究了不同比例一元、二元有机羧酸混合溶液对铸铝的缓蚀性能。

The membrane lipids of Nostoc flagelliforme are composed of MGDG, DGDG, SQDG and PG. There are six kinds of fatty acids, 16: 0, 16: 1, 18: 0, 18: 1, 18: 2 and 18: 3, attached to the carboxylic site of the membrane lipids.

发菜的膜脂由MGDG、DGDG、SQDG和PG组成，其酯酰基部位连接有16∶0、16∶1、18∶0、18∶1、18∶2和18∶3六种脂肪酸。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。