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- ethyl coumarin 乙基香豆素
- Study on coumarin derivative lasing dyes[J]. 引用该论文 何斌;程铸生.
- To introduce the ethyl group into(a compound). 使乙基化把乙基引入(一化合物)
- The synthesis of 3-chloro-7-hydroxy-4-methylcoumarin from ethyl acetoacetate and resorcinol and the synthesis of comaphos using coumarin as one of main materials were introduced in this paper. The product content is 95%. 介绍了以乙酰乙酸乙酯和间苯二酚为原料合成 3 -氯 - 7-羟基 - 4-甲基香豆素 ,再以香豆素为主要原料合成蝇毒磷的工艺 ,产品含量达 95%25。
- 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。
- Ethyl lactate was synthesized with sodium bisulfate. 采用硫酸氢钠为催化剂合成乳酸乙酯。
- An alcoholic liquor distilled from grain, such as corn, rye, or barley, and containing approximately40 to50 percent ethyl alcohol by volume. 威士忌酒一种从谷类如玉米、黑麦或大麦等提炼出来含酒精液体,按容量包含约40%至50%的乙醇
- Ethyl 3-aminobenzoate, methanesulfonic acid salt, 98... 3-氨基苯甲酸乙酯甲烷磺酸盐;
- No ethyl acetate and cyclohexane were determined in specimen. 被测样品中未检测出环己烷,检出乙酸乙酯。
- Remove the ethyl alcohol use calcium carbonate impurity method? 用碳酸钙除去乙醇中的乙酸杂质的方法???
- A liquid containing iodine dissolved in ethyl alcohol, used as an antiseptic for wounds. 碘酊; 碘酒溶于酒精的碘的一种液体,用作防止伤口感染的药剂
- Thus the term dialkyl carbonate includes, for example, methyl ethyl carbonate. 因此术语二烷基碳酸酯包括,例如甲基乙基碳酸酯。
- In Brazil, about 40% of all motor fuel is ethanol, also known as ethyl alcohol. 在巴西,所有机动燃料的大约40%25是乙醇,也就是酒精。
- coumarin -3 -carboxylic acid ethyl ester 香豆素-3-羧酸乙酯
- Any of several esters, other than the ethyl ester, of carbamic acid. 聚氨脂一种氨基甲酸中除乙基酯以外的酯
- The structural identification of natural products by using UV spectrometry was reviewed including flavones, anthrquinone, saponins, and coumarin. 摘要综述了紫外光谱法在天然产物黄酮类、蒽醌衍生物、皂甙以及香豆素类化合物结构测定中的应用。
- A Primary Study on Coumarin Component in the Stems and Leaves of Rubus corchorifolius L. F. 山莓茎叶香豆素成分的初步研究。
- Objective To develop a method for separation and determination of safrole and 6-methyl coumarin in cosmetics by GC-MS. 目的研究建立用气相色谱-质谱联用法测定化妆品中黄樟素、6-甲基香豆素的方法。
- In Brazil, about40% of all motor fuel is ethanol, also known as ethyl alcohol. 在巴西40%25机油是酒精,也是熟知的乙醛酒精。
- They added a small amount of the fluorescent dye coumarin to the emitter material tris (8-hydroxy-quinoline) aluminum. 他们在发光材料三(8?羟基口喹啉)化铝里,加入了少量的萤光染料香豆素。