ester

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

为将氨酯基团引入丙烯树脂提供了一种可用官能单体。

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

以水华鱼腥藻为材料研了6种氨基甲酯类农药对藻类毒性效应。

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。

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

用本发明方法得到叶黄素脂肪酯含量为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.

摘要单宁酶可水解没食子单宁中酯键和缩酚羧键，生成没食子和葡萄。

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

发现,6种氨基甲酯类农药对水华鱼腥藻都有不同程度毒性作用。

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%。

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

以它为原料增塑剂耐寒性优于丁醇和辛醇酯类。

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

阿托品是治疗由于用胆碱酯类不慎而引起心血管性虚脱特效解毒剂。

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

该方法采用硝溶解样品,黄原酯棉富集分离,以硫氰盐滴定法进行测定。

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酯或硅烷偶联剂可以显著提高紫外光固化玻璃涂膜对玻璃附着力。

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

通过一元羧和二乙烯基醚反应,我们得到了一种新颖酯缩醛构分子玻璃。

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］通过分子构设计,合成了一种氮-硼内配位构硼酯偶联剂,解决了硼酯水解稳定性差问题,同时分子构中含有氨基、丁氧基等活性基团。

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

表明，半高丛越橘以醇类、酯类、萜类和酮类物质为主。

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。

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

研了脂肪油衍生化、三氟化硼、硫3种不同方法对脂肪油皂化、甲酯化效,并用GC/MS法对柞蚕中脂肪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.

用四溴双酚A、环氧氯丙烷和丙烯为原料合成了阻燃型乙烯基酯树脂，其阻燃性能良好。

The synthesis of tridecane dicarboxylic acid diethyl ester with ethyl alcohol and tridecane dicarboxylic acid as reactants and cation exchange resin as catalyst had been studied.

以强性阳离子交换树脂为催化剂,十三碳二元与乙醇为原料合成十三碳二元二乙酯,考察了影响反应因素。

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酯及叠氮磷酰胺类化合物，并用IR、1HNMR、FAB-MS及元素分析对化合物构进行了鉴定。