ester

The research provided the applicable functional monomer leading urethano into acrylic ester.

为将氨酯基团引入丙烯酸树脂提供了一官能单体。

The toxicity effect of 6 carbamic ester pesticides on Anabaena flos-aquae was studied.

以水华鱼腥为材研究了6氨基甲酸酯农药对毒性效应。

The preparation of penicillin G sulfoxide p-nitrobenzyl ester from penicillin G was studied.

对青霉素G钾制备青霉素G亚砜对-硝基苄酯工艺进行了研究。

The content of xanthophyl fatty acid ester obtained is 70-80%, wherein the content of all-trans xanthophyl ester is 90-95%.

本发明方法得到叶黄素脂肪酸酯含量为70～80％，其中全反式叶黄素酯达90～95％。

By using phase transfer catalyst, the yield of the preparation of cyclopropane carboxylic isopropyl ester was increased.

在环丙甲酸异丙酯合成反应中,通过相转移催化剂提高了反应收率。

Tannase hydrolyses the ester bonds and depside bonds in gallic acid tannins to release gallic acid and glucose.

摘要单宁酶水解没食子酸单宁中酯键和缩酚羧键，生成没食子酸和葡萄糖。

Dicyclohexylcarbodiimide (DCC) is widely used in the reaction for synthesis of esters and amides as a condensation agent.

二环己基碳二亚胺(DCC)是酯化、酰胺化等反应常一脱水剂,采DCC脱水缩合,反应条件温和,合成收率通常较高。

The results revealed that there was the toxicity effect of 6 different carbamic ester pesticides on Anabaena flos-aquae.

结果发现,6氨基甲酸酯农药对水华鱼腥都有不同程度毒性作。

Ingredient: KL sublimation medicinal preparation 80%, dextrorotary alkyne fifth heavenly stem chrysanthemum ester 2-3%, function medicinal preparation 1- 3%.

KL升华剂80%，右旋炔戊菊酯2-3%，功能剂1- 3%。

Atropine is a specific antidote for the cardiovascular collapse that may result from the injudicious administration of a choline ester.

阿托品是治疗由于胆碱酯不慎而引起心血管性虚脱特效解毒剂。

The cold-fust of the plasticzing agent that use it as material is better than the ester of Butanone and Octanol.

以它为原增塑剂耐寒性优于丁醇和辛醇酯。

The ore sample was dissolved in nitric acid.After enrichment and separation with Xanthic ester cotton,the silver was determined by thiocyanometry.

该方法采硝酸溶解样品,黄原酯棉富集分离,以硫氰酸盐滴定法进行测定。

A novel family of ester acetal molecular glass materials has been created by the reaction between monocarboxylic acid and divinyl ethers.

通过一元羧酸和二乙烯基醚反应,我们得到了一新颖酯缩醛结构分子玻璃。

It is found that incorporation of a trifunctional carboxylic ester or silane coupling agent can improve the adhesion of coatings on glass.

实验发现加入一定量三官能团酸酯或硅烷偶联剂以显著提高紫外光固化玻璃涂膜对玻璃附着力。

The results showed that the main compound categories of aromatic components were alcohols, esters, terpenes and ketones for all half-highbush blueberry cultivars.

结果表明，半高丛越橘以醇、酯、萜和酮物质为主。

Archaean cell walls lack murein, a common component of bacterial cell walls, and their lipids have ether links rather than ester links.

古细菌细胞壁缺乏细菌细胞壁组成普遍物质-胞壁质，其连接是醚连接而不是酯连接。

There are two reactive groups, amino and butoxy in the borate ester molecule.The structure of the borate ester was characterized by IR spectrum.

［中文文摘］通过分子结构设计,合成了一氮-硼内配位结构硼酸酯偶联剂,解决了硼酸酯水解稳定性差问题,同时分子结构中含有氨基、丁氧基等活性基团。

Tussore oil was extracted by chemical .The fatty acid (FA) in tussore oil was saponificated and modified to methyl esters by different means .

研究了脂肪油衍生化、三氟化硼、硫酸3不同方法对脂肪油皂化、甲酯化效果,并GC/MS法对柞蚕中脂肪酸成分进行了鉴定和分析。

Flame retardant vinyl ester resin using tetrabromo bisphenol A, epichlorohydrin, acrylic acid as raw materials was also synthesized, Its flame retardant property was excellent.

四溴双酚A、环氧氯丙烷和丙烯酸为原合成了阻燃型乙烯基酯树脂，其阻燃性能良好。

Four compounds of phosphite ester and phosphoramide containing azido groups were synthesized. The molecular structure of the products has been confirmed by IR，1HNMR，FAB-MS and elemental analysis.

首次合成了叠氮亚磷酸酯及叠氮磷酰胺化合物，并IR、1HNMR、FAB-MS及元素分析对化合物结构进行了鉴定。