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乙醇酸

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Their structures were characterized as dihydroconiferyl dihydro-p-coumarate, vanillin, apocynin, p-hydroxybenzaldehyde, syringaldehyde, syringic acid, syringylethanone,α-hydroxypropiosyringone, coniferyl aldehyde, dihydroconiferyl alcohol, 2-hydroxyphenylpropanol, and 3-hydroxy-4-methoxy-phenylethanol, respectively.

结果 从该植物中分离得到12个酚性化合物,其结构分别为二氢松柏醇二氢对羟基桂皮酸酯,香草醛,罗布麻宁,对羟基苯甲醛,丁香醛,丁香酸,丁香乙酮,α-羟基丁香丙酮,松柏醛,二氢松柏醇,2-羟基苯丙醇和3-羟基-4-甲氧基苯乙醇。

Results The results showed that the optimal extracting technique of total alkaloids from Flos Datura was that 80 percent sulf-alcohol,and pH of sulf-water was 3,and the extracting time was 3,and the volume of solvent was 4 times as much as the amount of crude drug.

结果 洋金花总生物碱的最佳提取工艺为,使用80%的酸水乙醇,酸水pH值为3,提取3次,使用相当于药材量4倍的溶剂量。

By using a vitrating digital densimeter (DMA602/60), the densities of glycine and alanine in aqueous methanol, ethanol and propanol solutions were measured at 298.15 K, and the apparent molar volumes calculated. According to McMillan-Mayer approach, the volumetric interaction coefficients were evaluated.

用DMA602/60型震动管数字密度计测定了298.15 K下甘氨酸、丙氨酸分别在纯水和四个不同浓度甲醇、乙醇和丙醇水溶液中的密度,计算了相应的表观摩尔体积,用最小二乘法拟合了氨基酸在醇水溶液中的标准偏摩尔体积。

The activity of pyruvate formate-lyase and pyruvate dehydrogenase accounts for the observed production of formate, acetate, ethanol and acetoin. In 1978, Hillman isolated one of the mutants of Streptococcus mutans which lack the enzyme activity of dehydrogenase.

当外源性糖丰富的时候,果糖-1,6-二磷酸增加,使LDH活化,90%以上的葡萄糖被转化为乳酸;外源性糖供应不足时,通过丙酮酸甲酸裂解酶和丙酮酸脱氢酶作用产生甲酸、乙酸、3-羟基丁酮和乙醇。

Water, Cyclomethicone, Glycerin, Sd Alcohol 40-B (Alcohol Denat.), Propylene Glycol, Melia Azadirachta Leaf Extract, Lecithin, Arctium Lappa Root Extract, Xylitol, Lactitol, Alpha-Glucan Oligosaccharide, Lactoferrin, Potassium Thiocyanate, Glucose Pentaacetate, Glucose Oxidase, Lactoperoxidase, Glycoproteins, Panax Ginseng Root Extract, Equisetum Arvense Extract, Hydrolyzed Milk Protein, Peg-8, Caprylyl Glycol, Sebacic Acid, Sodium Polyacrylate, Betula Alba Bark Extract, Cupressus Sempervirens Leaf Extract, Hamamelis Virginiana Extract, Avena Sativa Meal Extract, Humulus Lupulus Extract, Silk, Nylon-12, Polyacrylamide, Polymethyl Methacrylate, Butylene Glycol, Salicylic Acid, Lauryl Methacrylate/Glycol Dimethacrylate Copolymer, Tocopheryl Acetate, C13-14 Isoparaffin, Laureth-7, Triethanolamine, Xanthan Gum, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Phenoxyethanol, Chlorphenesin, Benzoic Acid, Methylparaben, Fragrance, Titanium Dioxide

水,环甲硅脂,甘油,Sd Alcohol 40-B,丙二醇,印度楝树叶萃取,卵燐脂,牛蒡根萃取,木糖醇,乳糖醇,α-葡低聚糖,乳铁蛋白,硫氰酸钾,葡萄糖五乙酸酯,葡萄糖氧化酶,乳过氧化物酶,糖蛋白,人参根萃取,问荆萃取,水解牛奶蛋白,聚乙二醇-8,辛乙二醇,癸二酸,聚丙烯酸酯钠,白桦萃取,丝柏叶萃取,金缕梅萃取,燕麦萃取,啤酒花萃取,丝,尼龙-12,聚丙烯醯胺,聚甲基丙烯酸甲酯,丁二醇,水杨酸,甲基丙烯酸十二酯,醋酸盐维他命E,C13-14 异烷烃,月桂醇聚醚-7,三乙醇胺,山羊胶,丙烯酸/C10-30烷基丙烯酸聚合物,苯氧乙醇,氯苯甘醚,苯甲酸,羟苯甲酯,香料,二氧化钛

Process for the manufacture of a dialkylphenylethylmalonatewhich comprises adding to a quantity of sodium which is covered with a hydrocarbon solvent boiling above 100°C, at least a chemically equivalent proportion of methyl, ethyl or a propyl alcohol, subsequently adding an approximately equivalent proportion of a dialkylcarbonate and of an alkyl phenylacetate, the alkyl groups in these two last-mentioned compounds being preferably the same as the alkyl radical of the above –mentioned lower aliphatic alcohol, heating the mixture to induce reaction and continually distilling out the alcohol formed from the reaction zone and finally causing the sodio diethyl phenylmalonate so formed to interact with an ethylating agent.

生产二烷基苯基丙二酸酯的工艺过程:这包括这包括把至少处于化学平衡的甲醇,乙醇或丙醇添加到覆盖着沸点超过一百摄氏度的碳氢化合物溶剂中,接着加入大约相同当量的二烷基碳酸酯和烷基乙酸苯酯,在刚才提到的化合物中,其烷基集团最好是和刚才提到的低级别脂肪族醇相同,然后加热反应混合物从而引导反应的进行,在反应区域通过连续蒸馏移除形成的醇类。最后使所形成的钠代二乙基苯基丙二酸酯和乙基化试剂反应。

According to the existence of propionyloxy functional group in bilirubin molecular structure, bile is reacted with limewash. Thereby, solids are obtained.

根据胆红素分子结构中含有丙酸基官能团,将胆汁和石灰水反应,得固体颗粒,经酸化、乙醇处理、氯仿提取、浓缩、精制,得胆红素。

Methods Acute liver impairment models were made by intraperitoneal injecting 0.1 % CCl4(10 mL/kg).AST and ALT were used as indexes to observe liver protection effect of alcohol extract South Wuweizi steamed with vinegar comparing with raw Wuweizi.

方法腹腔注射0.1%的CC l4花生油溶液(10 mL/kg)制作小鼠急性肝损伤模型,以血清中天门冬氨酸氨基转移酶及丙氨酸氨基转移酶为指标,观察比较生品南五味子和醋蒸南五味子乙醇提取物对小鼠肝脏的保护作用。

Silicon phthalocyanine dihydroxide was prepared from silicon phthalocyanine dichloride through two methods. The first was alkali treating that meaned silicon phthalocyanine dihydroxide was treated in the ethanol solution containing sodium methylate .The second was acid treating meaned precipitating its solution in concentrated sulfuric acid into ice water. The product yield of the second method was 77.0%, which was higher than the method of alkali treating.

此外将合成的二氯酞菁硅采用两种方法转化为二羟基酞菁硅,第一种方法是碱处理法即将二氯酞菁硅在甲醇钠的乙醇溶液中回流得到,最高收率为53%第二种方法是酸处理法即采用二氯酞菁硅的硫酸溶液在冰水析出的方法转化为二羟基酞菁硅,其中酸溶析出法收率为77.0%。

Disodium petroleum cyclocarboxylic monoethanolamine sulfosuccinate was synthesized from petroleum cyclocarboxylic acid methyl ester via amidation,esterification and sulfonation.

利用石油环烷酸原料合成出石油环烷酸单乙醇酰胺磺基琥珀酸单酯二钠盐。

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