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- ethyl cyanacetic ester 2-氰基丁酸酯
- The Knoevenagel condensation of armatic aldehydes and malononitrile or cyanacetic ester is carried out by DMF as solvent without catalyst.The process gives high yields of products. 本文报道了无外加催化剂条件下以DMF为溶剂芳香醛与丙二腈或氰基乙酸乙醇进行克脑文盖尔缩合反应,此法产率较高。
- The sensitization of raw material and intermediate of pyrazosulfuron-ethyl was studied using guinea pig.The result indicated that ethoxy methylene cyanacetic ester is sensitive agent. 本文对吡嘧黄隆生产中的原料和中间体氰乙酸乙酯,乙氧基甲叉氰乙酸乙酯和吡唑胺进行了致敏性试验研究。
- sodium cyanacetic ester 钠代氰基乙酯酸
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯
- Keywords Alkalimetric titration;Ethyl cyanacetate;Acidity; 碱滴定法;氰基乙酸乙酯;酸度;
- The major aromas were hexylic acid ethyl ester, benzyl ethanol, octylic acid and octylic acid ethyl ester. 主体风味成分是己酸乙酯、苯乙醇、辛酸和辛酸乙酯。
- A natural or synthetic ester of glycerol and fatty acids. 甘油酯以甘油和脂肪酸天然存在的或合成的酯
- To introduce the ethyl group into(a compound). 使乙基化把乙基引入(一化合物)
- A salt or an ester of lactic acid. 乳酸盐或乳酸酯
- A salt or an ester of titanic acid. 钛酸盐钛酸的盐或酯
- A salt or ester of hypochlorous acid. 次碳酸盐一种次碳酸的盐或酯
- Ester asked for time to think all this over . 埃斯特拉要求给她时间好好想一想。
- Ester asked for time to think all this over. 埃斯特拉要求给她时间好好想一想。
- A salt or an ester of malic acid. 一苹果酸的盐或酯
- A salt or an ester of oxalic acid. 草酸盐草酸的盐或酯
- A salt or ester of arsenic acid. 砷酸盐,砷酸酯
- A salt or an ester of pantothenic acid. 泛酸盐,泛酸脂泛酸的盐或脂
- A salt or an ester of propionic acid. 丙酸盐丙酸的一种盐或脂
- Ethyl acetate(71. 41b)was added to the slurry in the vessel. 把醋酸乙酯71.;4磅加到容器中的浆液内。