hydroxyl

Twelve 20 - hydroxyl ester analogues of camptothecin were prepared and evaluated in vitro antitumor activity.

为了改善取代喜树碱的溶解性、抗肿瘤活性和毒副作用,设计合成了十二个新的取代喜树碱20-位羟基酯衍生物.

A method for determining hydroxyl value of epoxy - containing polyester, namely acetyl chloride method is introduced.

介绍了一种含环氧基聚酯的羟值测定方法, 即乙酰氯法.

Key compounds under review included vitamins, antioxidants , alpha - hydroxyl acids, moisturizers, pentapeptides and botanicals.

主要成分包括:维生素 、 抗氧化剂 、 果酸 、 湿润剂 、 胸腺五肽以及植物制剂.

And they detected hydroxyl HO that's left behind when a rock crystallizes from magma containing water.

科学家们从中找到了羟基,这是由含水岩浆结晶成岩石遗留下来的.

The surface lipids undergo oxidation, generating many compounds containing hydroxyl and carbonyl groups.

表面的类脂物氧化后, 产生许多化合物,包括羟基和羰基化合物.

Both the free hydroxyl groups readily undergo esterification.

两个自由羟基,都容易酯化.

THF copolymerized GAP is synthesised by the azidation of hydroxyl THF - ECH copoyethers.

b.端羟基THF - ECH共聚醚叠氮化生成THF共聚 型GAP粘合剂.

Conclusion: The new monoterpene glycoside was identified as 4 " - hydroxyl - albiflorin. "

结论: 新化合物命名为 4″- 羟基白芍苷.

And the IR analysis shows that silicone resin possesses hydroxyl end group.

红外光谱(IR)显示,合成的硅树脂含有端羟基.

The free hydroxyl ion is involved in a further reaction with the silica network.

游离的氢氧离子会进一步和硅氧网络反应.

It will be more susceptible to attack by hydroxyl ion.

它更容易被羟基离子所作用.

The presence of an equal concentration of hydrogen and hydroxyl group.

具相等份量的浓缩氢和氢物料.

Hydroxyl has an extremely oxidizing nature.

氢氧基具有极强的氧化特性.

Variation of concentration of hydroxyl radical was computed.

计算得出了羟基自由基的浓度变化情况.

Hydroxyl acrylic acid resin ( HAR ) with high solid and low viscosity anacrylic acid monomer in solution.

采用溶液聚合法合成了高固体分低粘度的羟基丙烯酸树脂 ( HAR ),详细讨论了引发剂、链转移剂、反应温度、溶剂等对HAR粘度的影响.