The products were identified TLC as monoester and diester.
反应产物经薄层色谱鉴定为单酯和双酯。
Method for preparing 2, 3, 5-trimethyl hydroquinone diester.
一种制备2,3,5 -三甲基氢醌二酯的方法。
The modification of synthesizing processes of phosphates with P2O5 and testing method of the content of monoester and diester were introduced briefly.
简要介绍了使用五氧化二磷作为磷酸化试剂合成磷酸酯的工艺过程改进，以及磷酸单双酯含量检测的常用方法。
The present invention relates to a method for preparing long-chain dibasic acid diester by using long-chain dibasic acid produced by fermentation process.
本发明涉及一种长链二元酸双酯的制备方法，尤其是一种用发酵法生产的长链二元酸制备长链二元酸双酯的方法。
After processing of crude aconite roots, most of the diester diterpenoid alkaloids converted to the monoester form, while C8 was the major location for such reaction. It is a ty…
生川乌炮制后生物碱大多数由双酯型水解转化为单酯型，水解反应最容易发生的位置在C8位，水解反应的类型是烷氧键发生断裂的酯的碱性水解。
Carbon monoxide and nitrous acid ester are synthesized through coupling reaction into diester carbonate in the presence of catalyst and at relatively low pressure and temperature.
一种碳酸二酯的合成方法，通过一氧化碳和亚硝酸酯在催化剂存在下，用较低的压力和较低的温度偶联合成碳酸二酯。
PSS is one kind of sodium amylase diester sodium that takes sodium alginate as raw material, which has the characteristic of anti-cruor, reducing the viscidity of blood fat and blood.
PSS是以海藻酸为原料研制的一种褐藻多糖双酯钠，具有抗凝血、降血脂和降低血液粘度的作用。
The experiments were carried on the synthesized diester-based magnetic fluids to characterize their saturation magnetization, density, viscosity, stability and the diameter of particles.
并对制得的二酯基磁性液体饱和磁化强度、密度、粘度、稳定性和粒子直径等性能参数进行表征实验。
The invention relates to a method for preparing a novel diester, which comprises steps of synthesis using immobilization lipase catalyzed by biprotic fatty acid and monohydric fatty alcohol.
本发明涉及一种新型的二元酸酯的制备方法，包括采用固定 化脂肪酶，由二元脂肪酸和一元脂肪醇催化合成二元酸酯的步骤。
Nonylphenol polyoxyethylene ether was esterified with maleic anhydride and then sulfonated with sodium bisulfite to form nonylphenol polyoxyethylene ether sulfosuccinic acid diester sodium salt.
以壬基酚聚氧乙烯醚为原料，与顺酐酯化再与亚硫酸氢钠磺化，合成了壬基酚聚氧乙烯醚琥珀酸双酯磺酸钠。
METHODS: The contents of total alkaloids, diester diterpenoid alkaloids and polysaccharides were measured by acid dye colorimetry, HPLC and sulphuric acid-anthrone colorimetric method respectively.
方法：采用酸性染料比色法测定附子总生物碱含量，反相高效液相色谱法测定双酯型生物碱含量，蒽酮-硫酸法测定多糖含量。
Objective: to detect expression of interleukin - 23 (il - 23) and il - 12 subunits in various leukemia cell lines and evaluate the ability of phorbol diester to up - regulate the subunits expression.
目的：检测人白细胞介素-23 (IL - 23)和白细胞介素-12 (IL - 12)亚基在各类白血病细胞系中的表达并探讨佛波二酯对IL - 23和IL - 12亚基表达的调控作用。
Objective: to detect expression of interleukin - 23 (il - 23) and il - 12 subunits in various leukemia cell lines and evaluate the ability of phorbol diester to up - regulate the subunits expression.
目的：检测人白细胞介素-23 (IL - 23)和白细胞介素-12 (IL - 12)亚基在各类白血病细胞系中的表达并探讨佛波二酯对IL - 23和IL - 12亚基表达的调控作用。
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