介绍了三氯乙腈的合成方法及应用,分析了其产销现状及前景。
The synthesis of trichloroacetonitrile and application were introduced. The status of production and sales, and its prosperity were analysed.
只有酪氨酸、色氨酸和天冬酰胺加氯反应后生成了二氯乙腈(DCAN);
Tyrosine, tryptophan and asparagines produced DCAN after chlorination. There was only glycine which didn't form CHD.
目的:探索4(2氯乙氧基)二苯酮的合成条件,包括原料配比、反应时间等。
Objective:In order to find the best condition for the synthesis of 4 (2 chloroethoxy)benzophenone, including the proportion of material, the time of reaction.
结果使用西帕依固龈液治疗复发性口腔溃疡的总有效率为88.3%,使用复方氯乙定含漱液总有效率为76.6%。
Results Xipayi mouth rinse liquid treatment for recurrent oral ulcers, the total effective rate was 88.3%, the total effective rate was 76.6% in control group.
对于这种感染可用乙嘧啶,磺胺嘧啶和氯林可霉素等药物进行治疗。
The infection is treated with drugs such as pyrimethamine, sulfadiazine and clindamycin.
异丙甲草胺和乙草胺均属氯代乙酰胺类除草剂,它们在水田中活性极高。
Metolachlor and acetochlor are belong to acetanilide herbicides, they have high activity in rice field.
目的:比较尿白蛋白百分含量不同时用邻苯三酚红钼法(PRM)和苄乙氯铵法(BEC)测定尿总蛋白结果的差异。
Objective: To compare the difference of the results of urinary total protein with different proportion of albumin using Pyrogallol Red-molybdate method (PRM) and benzethonium chloride method (BEC).
实验在氯醛糖加氨基甲酸乙酯麻醉的新西兰兔上进行。
The experiments were performed on rabbits anaesthetized with urethane and chloralose.
研究了以无水碳酸钠为催化剂,红霉素肟与甲氧基乙氧基氯甲醚(MEMC)为原料,一步合成罗红霉素的实验过程。
The experimental process on synthesis of roxithromycin was studied by using erythromycin oxime and MEMC as raw material under the catalytic action of anhydrous sodium carbonate.
建立了TLC法分离碱性药物牛磺罗定及有关物质2-氨基乙磺酰氯、2-氨基乙磺酰叠氮和2-氨基乙磺酰胺。
TLC method was established for the separation of taurolidine and related substances 2-aminoethyl sulfonyl chloride, 2-aminoethyl sulfonyl azide and 2-aminoethyl sulfonamide.
提出了以苯为介质一步合成氯磷酸二乙酯的方法及其相应的反应条件;
In this paper one step synthesis of diethyl chlorophosphate(DCP) with benzene was studied and the influence of the operating conditions on the reaction was investigated.
像去乙醯环丙氯地孕酮醋酸盐的物质被用来抑制性腺激素的分泌。
Substances like cyproterone acetate are used to suppress the gonadal hormone production.
地克珠利、环丙氨嗪、莱克多巴胺、牛至香酚、氯氰碘柳胺钠、双乙酸钠、乙氧基喹啉、大蒜素、脲酶抑制剂。
Diclazuril, Cyromazine, Ethoxy Quinoline, Closantel Sodium, Ractopamine, Oregano Oil, Garlicin, Urease Inhibitor etc. raw material and 100 various products such as preparation.
本文确定了药物合成过程中经常使用的有机溶剂(乙醇、乙腈、二氯甲烷)残留量的检测方法。
This thesis introduces the test and demonstration of checking method of ethanol, methyl cyanide and dichloride methane which are forbidden.
目的建立溴芬酸钠原料中二氯甲烷、甲苯、1,2-二甲氧基乙烷、乙酸乙酯、乙醇残留量测定方法。
Objective To establish a method for detection of dichloromethane, 1,2-dimethoxyethane, toluene, ethyl acetate and ethanol in bromfenac sodium.
产品成份:去离子水、丙二醇、丙烯酸聚合物、西曲氯铵、木瓜提取液、海藻提取液、DMDM乙内酰脲、香料。
Ingredients: Deionized Water, Propylene Glycol, Acrylic Acid Copolymer, N-Hexadecyltrimethylammonium Chloride, Papaya Extract, Alga Extract, DMDM Hydantoin, Essence.
有机氯类用乙酸乙酯—环己烷和凝胶净化柱提取净化,石英毛细管气相色谱(配ecd检测器)检测。
Organic chlorine using ethyl acetate - cyclohexane and gel purification column extraction purification, quartz capillary gas chromatography (ECD allocation) detection.
产品成分:去离子水、丙二醇、丙烯酸聚合物、西曲氯铵、木瓜提取液、甘草提取液、DMDM乙内酰脲、香料。
Ingredients: Deionized Water, Propanediol, Acrylic Acid Polymer, N-Hexadecyltrimethylammonium Chloride, Pawpaw Extract, Melarrest l, DMDM Hydantoin, Essence.
甲基二烯丙基硅烷是一种重要的有机硅中间体,采用甲基三乙氧基硅烷和烯丙基氯通过格式反应制得。
Diallylethoxylmethylsilane is an important silicone intermediate. It was prepared by reaction of methyltriethoxylsilane with allyl chloride grignard reagent.
一种清除口香糖残渣的清除剂由二硫化碳、二氯甲烷、乙酸乙酯、司班-80、环己酮及十二烷基苯磺酸钠及水组成。
The scavenging agent for scavenging the chewing gum residual consists of carbon disulfide, methylene dichloride, ethyl acetate, span-80, cyclohexanone, sodium dodecyl benzene sulfonate and water.
在碱性条件下,用氨基乙酸与二硫化碳、氯甲酸乙酯反应合成了异硫氰基乙酸乙酯,总收率为4 8。
Isothiocyanatoacetate ester is synthesized by the reaction of aminoacetic acid with carbon disulfide and ethyl chloroformate in the presence of an alkali with the overall yield of 48.
在我们的合成方法中,先从-苯乙醇开始合成了-苯乙基氯,再用丙二酸二乙酯的烯醇盐离子进行亲核取代。
First we synthesized the -phenylethyl chloride from -phenylethyl alcohol. Then it was substituted by enolate anion of diethyl malonate and converted to ester.
方法用高分辨液质联用分析法,对其甲醇提取物及二氯甲烷和乙酸乙酯混溶剂提取物进行了成分分析。
Method Methanol and mixed solvent of chloroform and ethyl acetate extracts from Cordyceps formosana were analyzed with HPLC-DAD-HRMS.
本文用2-氯-5-氯甲基吡啶经氨基化,和N-氰基乙亚胺酸乙酯反应,最后甲基化得到吡虫清。
In this thesis, 2-chloro-5-chloromethyl pyridine is ammoniated, which followed by the reaction with N-cyano ethyl ethylimidoate, finally is methylated to gain the objective product.
本文报道通过亚稳离子和精确质量测定,讨论了1,1—二氯—2—乙氧基—2—芳基烯烃的质谱裂解规律。
A study on the mass spectrometric cleavage of 1, 1—dichloro—2—ethyloxy—2—AryIolefins by metastable ions and precise mass measurement is reported.
西司他丁钠的合成以乙酰乙酸乙酯和1-溴-5-氯戊烷为原料,经活性亚甲基烃化、成肟和水解3步反应得7-氯-2-氧庚酸乙酯;
The synthesis of Cilastatin sodium started from ethyl acetoacetate and 1-bromo-5-chloropentane, through 3 steps to produce ethyl 7-chloro-2-oxoheptanoate;
草酸单乙酯酰氯;
草酸单乙酯酰氯;
应用推荐