• 一缩二乙二醇甲苯和对甲苯相对挥发度影响机理还需进一步探讨

    The mechanism of the effect of diethylene glycol on o -, p-benzol chloride system needs further investigating.

    youdao

  • 发明属于医药技术领域公开了一种盐酸酚酯乙二醇药物组合物及其制备方法

    The invention belongs to the technical field of medicine, and discloses a drug composition of meclofenoxate hydrochloride and polyethylene glycol and a preparation method thereof.

    youdao

  • 主营甲醇乙醇乙二醇丙酮,二乙烷,二甲烷,二乙二醇

    Main methanol, ethanol, ethylene glycol, acetone, ethylene dichloride, methylene chloride, diethylene glycol.

    youdao

  • 非活性成分柠檬酸甘油果糖玉米糖浆天然香料乙二醇丙二净化苯甲酸钠蔗糖

    Inactive Ingredients: Citric Acid, Glycerin, High Fructose Corn Syrup, Natural Flavors, PEG, Propylene Glycol, Water Purified, Sodium Benzoate, Sucralose.

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  • 研究对甲苯乙二醇制备单对甲苯磺酸乙二醇合成工艺。

    Toluene-4-sulfonic acid 2-hydroxy-ethyl ester was synthesised by p-toluenesulfonyl chloride with glycol.

    youdao

  • 乙二醇糖苷、高级脂肪胺环氧丙烷原料合成了葡萄糖铵盐阳离子表面活性剂

    Quaternary ammonium salt cationic surfactant containing glucose group was synthesized with ethylene glycol glycoside, N, N-dimethyldodecan-1-amine and epoxy chloropropane.

    youdao

  • 二氧杂环己烷溶剂通过乙二醇2 70对甲基苯磺酰反应合成了1 8冠6,率64 .4 %。

    Also, in dioxane solution, 18Crown6 was prepared in 64.4% yields by reaction of polyethylene glycol 270 and ptoluenesulfonyl chloride.

    youdao

  • 解决胶原免疫原性,采用经甲酸对硝基苯酯活化的单甲氧基聚乙二醇修饰胶原酶。

    In order to overcome the immunogenicity of collagenase, the enzyme was modified with monomethoxypolyethylene glycol 5000 (mPEG) activated by p nitrophenyl chloroformate.

    youdao

  • 解决胶原免疫原性,采用经甲酸对硝基苯酯活化的单甲氧基聚乙二醇修饰胶原酶。

    In order to overcome the immunogenicity of collagenase, the enzyme was modified with monomethoxypolyethylene glycol 5000 (mPEG) activated by p nitrophenyl chloroformate.

    youdao

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