均二氨基脲

The baseline separation of 9 neutral compounds (thiourea, benzene, toluene, ethyl benzene, n-propylbenzene, naphthalene, n-butylbenzene, fluorene and anthracene) and 7 acidic, basic and neutral compounds (thiourea, o-aminophenol, phenol, benzene, o-methylaniline,α-naphthylamine, 2,4-dichloroaniline) can be obtained under optimized capillary electrochromatographic conditions.

在该均相硅胶基质整体柱上成功地分离了9种中性物质(硫脲、苯、甲苯、乙基苯、正丙苯、萘、正丁基苯、芴和蒽)以及7种中性、酸性和碱性物质(硫脲、邻氨基酚、苯酚、苯、邻甲苯胺、α-萘胺和2，4-二氯苯胺)。

Is a research and development, production, trade and service-based economy of foreign trade entities, chemical raw materials to the professional operation of the main company's existing production of AC blowing agent, ferric chloride, hydrated Hydrazine, p-nitrophenol, m-phenylenediamine, phosphorus trichloride, phosphorus oxychloride, 2,4 - diamino benzene sulfonate, sodium dichloro isocyanurate, N-methyl-o-phenylenediamine Second hydrochloride fine chemical products such as the ability, and are obtained ISO9001 international quality system certification.

济南华尔沃进出口贸易有限公司是一家集研发、生产、贸易、服务于一体的外贸型经济实体，以专业经营化工原料为主，公司现有生产AC发泡剂、三氯化铁、水合肼、对硝基苯酚、间苯二胺、三氯化磷、三氯氧磷、2，4—二氨基苯磺酸钠、二氯异氰脲酸钠、N-甲基邻苯二胺二盐酸盐等精细化工产品的能力，并且均以取得ISO9001国际质量体系认证。

On the basis of these principles and requirements,in this paper,a new modifier has been synthesized from pyromellitic dianhydride and thiosemicarbazide by the nucleophilic addition of anhydride,the cyclization of acyl thiosemicarbazide in alkaline solution,and the N-hydroxymethylation of the triazole-thione.

本文根据这一思路，以均苯四甲酸二酐和氨基硫脲为起始原料，通过酸酐的亲核加成反应、酰氨基硫脲的碱性环化反应、三唑硫酮环的N-羟甲基化反应合成出了一种新的N-羟甲基三唑硫酮酸改性剂。

The preliminary bioassays indicated that, at 500 g/mL, 1-(o-tolyl-4-(4-chloro-3-ethyl-1-methylpyrazol-5-ylcarbonyl)semicarbazide (4g) and 1-(2,4-dimethyl- phenyl)-4-(4-chloro-3-ethyl-1-methylpyrazol-5-ylcarbonyl)semicarbazide (4k) showed inhibitory activities 90% and 80% against Blumeria graminis, respectively; and at 25 g/mL, 4-phenyl-4-(4-chloro-3-ethyl-1- methylpyrazol-5-ylcarbonylsemicarbazide (4c) showed inhibitory activity 70.1% against Botrytis cinerea and 1-2-nitro-phenyl-4-(4-chloro-3-ethyl-1-methylpyrazol-5-ylcarbonylsemicarbazide (4d) showed inhibi-tory activitiy 51.3% against Pyricularia oryzae.

初步生物活性实验结果表明，在500 mg/mL浓度下，化合物1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-(2-甲基苯基)氨基脲(4g)， 1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-(2，4-二甲基苯基)氨基脲(4k)对小麦白粉病菌的抑制率分别达到90%和80%；在25 mg/mL浓度下，化合物1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-苯基氨基脲(4c)对黄瓜灰霉病菌的抑制率达到70.1%；化合物1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-苯基氨基脲(4c)和1-(4-氯-3-乙基-1-甲基-1H-吡唑-5-甲酰基)-4-(2-硝基苯基)氨基脲(4d)对稻瘟病菌的抑制率均达到51.3%。

The structures were identified by IR, UV,〓 NMR and element analyses. 2. Free radical 4-hydroxy-2,2,6,6-tetramethyl-1-piperidinyloxyl as catalyst, the phase transfer catalyzed method of oxidation eighteen semicarbazides to N-Aryl-2-Phenyl diazenecarboxamide with a solution of potassium ferricyanide in 2N aqueous sodium hydroxide and dichloromethane is described for the first time.

利用2，2，6，6-四甲基-4-羟基-1-哌啶氮氧自由基为相转移催化剂，在饱和铁氰化钾的2N氢氧化钠溶液与二氯甲烷的两相反应液中，催化氧化十八个取代氨基脲得到十八个相应的新型偶氮化合物N，2-二芳基二氮亚烯甲酰胺，均获得了较高的产率。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。