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硫酸苯酯

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BPA is a substrate for estrogen sulfotransferase, and bisphenol A sulfate and disulfate are substrates for estrone sulfatase.

BPA是一个雌激素磺酸转移酶的底物,且二苯A硫酸盐和脱硫酸盐是雌激素酮硫酸酯酶的底物。

This article provided a new route to produce 4-dimethoxy phenethylamine. In basic condition, the product could be obtained through etherization, bromation, Grignard reaction, hydroxyethylation, esterification and Gabriel reaction with phenol as raw material, the overall yield is 45.0%.

提出了合成4-甲氧基苯乙胺的新方法,即在碱性条件下,苯酚首先与硫酸二甲酯反应,再选用高选择性的溴化剂溴化后,经格氏反应、羟乙基化反应和酯化反应,最后经Gabriel反应可以制备目标产物,反应总收率为45.0%。

By using sodium hydrogen sulfate as the catalyst,benzyl alcohol and propionic acid reacted to form benzyl propionate .

以苯甲醇、丙酸为原料,硫酸氢钠为催化剂,合成了丙酸苄酯。

Especially , the rearrangement reaction of converting styrene oxide to phenylacetyldehyde were investigated. In this paper, we also studied the method of preparing SO42-/TiO2 by vitriolic titanium boiling regurgitant hydrolyzation and applications of SO42-/TiO2 in the preparation of iso-amyl acetate.

对环氧苯乙烷经分子重排反应制备苯乙醛进行了深入研究;本论文还用硫酸钛沸腾回流水解法制备了纳米SO_4~(2-)/TiO_2固体超强酸粉末,并应用于冰乙酸与异戊醇酯化合成乙酸异戊酯的反应。

Ingredients: Water, Cetyl Alcohol, Propylene Glycol, Sodium Lauryl Sulfate, Stearyl Alcohol, Methylparaben, Propylparaben, Butylparaben.

它非常轻柔,可以用来清洗婴儿的娇嫩皮肤水,十六醇,丙二醇,硫酸月桂酰钠,硬脂醇,对羟基苯甲酸甲酯,丙对苯,羟苯丁酯

The costuslactone and dehydrocostuslactone in the supercritical CO 2 extract of aucklandia were identified by TLC using a mobile phase of petroleum ether,ethyl acetate and benzene (70∶5∶15) and the colour developing reagent of 5% vanillic aldehyde dissovled in sulfuric acid.

用薄层色谱法,以ψ(石油醚∶乙酸乙酯∶苯)=70∶5∶1 5为展开剂,质量分数为 5 %香草醛硫酸为显色剂对木香超临界萃取物中的木香烃内酯与去氢木香内酯进行鉴别;并建立高效液相色谱法同时测定木香烃内酯与去氢木香内酯的含量方法。

The results showed that Kaidimycin was chemically neutral, macrocylic polylactones, stable and liable to dissolve into water and pyridine, slight to dissolve into methanol, ethanol and N-butanol, difficult to dissolve into ethyl acetate, acetone, benzene and chloroform. Chemical reaction of functional group of Kaidimycin showed that it had glycoside, amino acid and aldehyde, no reducing sugar, polypeptide and phenol.

凯地菌素属中等极性的、中性抗生素,极性纸层析结果与多烯类抗生素的纸层析结果相似:易溶于水、吡啶,微溶于甲醇、乙醇、正丁醇,不溶于乙酸乙酯、丙酮、苯、三氯化碳;对高温、光照和紫外处理有很好的稳定性;官能团反应试验结果发现,凯地菌素可能含有糖苷键、氨基酸伯氨基和醛基,不含有还原糖、多肽和酚基,高锰酸钾、浓硫酸反应与多烯大环内酯类抗生素的特性相似;并且依据纯品,采用生物法和分光光度法对摇床发酵液进行了效价的测定。

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Plunder melds and run with this jewel!

掠夺melds和运行与此宝石!

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻,也许正是在通往天国的路上,我体验着这白色的晕旋。

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单击"保存"会将文件保存到主持人的硬盘或服务器上,而不是您自己的计算机上。