乙酰氯

The enzyme assays indicated that Pseudomonas sp. ND6 NahG exhibits broad substrate specificities and metabolizes salicylate, acetylsalicylate, sulfosalicylate, 3-methylsalicylate, 5-methylsalicylate and 5 chlorosalicylate.

酶学实验表明，ND6菌株的水杨酸羟化酶具有广泛的底物特异性，它不仅能代谢水杨酸，还能代谢多种水杨酸的衍生物，如乙酰水杨酸、黄基水杨酸、3-甲基水杨酸、5-甲基水杨酸和5-氯水杨酸等。

The processes for preparation of tribenuron-methyl and its key intermediates were reviewed. Comparing the yield, quality, cost, safety and environmental protection and other aspects, the best production process of tribenuron-methyl is to use the methyl 2-benzoate and sodium cyanate as raw materials.

综述了苯磺隆及其关键中间体的主要生产工艺，并对各生产工艺在收率、质量、成本、安全环保等方面进行了比较和评价，指出了以邻甲酸甲酯苯磺酰氯、乙腈和氰酸钠为原料的工艺是苯磺隆的最佳生产工艺。

The reducing-coupling reaction of benzoyl chloride under Dy/n-BuBr was complex. Besides diphenyl diketone, benzoin and ring-opening product of THF were also obtained.

苯甲酰氯在Dy/n-BuBr作用下的还原偶联反应较为复杂，除得到二苯基乙二酮外，还得到四氢呋喃开环产物以及安息香。

The company is the biggest professional manufacturer about succinic acid series in China,the main product are succinic acid,succinic anhydride,ethyl succinyl chloride,the products are fine and advanced technicsis used manufacturing.

简介： 公司是国内最大的丁二酸系列产品的专业生产企业，重点产品：丁二酸、丁二酸酐、丁二酸单乙酯酰氯，产品质量上乘，多种工艺提供不同厂家的需要。

Objective: To study the effect and security of diclofenac sodium suppository and paracetamol suppository in febrific children,and suggest febrifuge in clinic practice.

目的：探讨双氯芬酸钠栓剂和对乙酰氨基酚栓在儿科临床的退热效果和安全性，为临床选择退热药提供参考。

They are insoluble in water, ethanol, methanol, acetone, chloroform and benzene, but soluble in DMA, DMF and DMSO.

它们溶于N，N-二甲基甲酰胺、N，N-二甲基乙酰胺和二甲基亚矾等溶剂，但不溶于水、乙醇、甲醇、丙酮、氯仿和苯。

Through the different concentrations of security agents on GSH conten, GST activity, ALS activity in different degree, basic verifies the methylene chloride acetyl groups were evil to reduce CFC sulfonylurea lung damage mechanism of corn.

通过不同浓度的安全剂对GSH含量，GST活性，ALS活性均有不同程度的促进作用，基本验证了二氯乙酰基恶唑烷类化合物减轻氯磺隆对玉米伤害的作用机理。我只有这些分数了，谢谢英语大侠了！

Our method featured employing the glycosyl donor with Bz as the protectivegroups and 0.05 equiv of TMSOTf as the promoter.

即：用苯甲酰基保护的三氯乙酰亚胺酯作给体，用5％当量的TMSOTf作促进剂，在室温下反应5min至15min。

Our method featured employing the glycosyl donor with Bz as the protective groups and 0.05 equiv of TMSOTF as the promoter.

即：用苯甲酰基保护的三氯乙酰亚胺酯作给体，用 5%当量的 TMSOTf 作促进剂，在室温下反应 5 min 至 15 min。

The herbicide antidote N-dichloroacetyl-2-methyl-1-oxa-4-aza-spiro-4.4-nonane was tested on protecting maize residual damage from chlorimuron by 6 agriculture maize as indicator plant in water with chlorimuron.

以垦玉6号玉米为指示材料，采用水培法研究了除草剂解毒剂N-二氯乙酰基-2-甲基-1-氧杂-4-氮杂-螺[4.4]壬烷减轻除草剂氯嘧磺隆对玉米产生的残留药害。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。