The main volatile chemical components of RPR are(Z, Z)-9,12-octadecadienoic acid, n-hexadecanoic acid and 2-hydroxy-benzaldehyde.
赤芍主要挥发成分为(Z, Z)-9, 12-十八碳二烯酸,正十六碳酸和2-羟基苯甲醛。
If skin is normal to dry, look for moisturizers containing alpha hydroxy acids.
如果皮肤是中性到干性的,你要找一找包含AHA果酸的润肤霜。
For example, the hydroxy can be replaced by fluorine ion.
晶格内的离子可发生置换,如羟基离子可被氟离子替代。
The high solid content hydroxy acrylic resins were modified by microgels.
利用制备的微凝胶对高固体份羟基丙烯酸树脂进行了改性。
They contain one or more functional group such as amide, hydroxy, or carboxy.
它们含有一个或多个功能团如:氨基、羟基、羧基。
The deactivation of hydrogenation catalyst of 3 - hydroxy propionic aldehyde was studied.
对3-羟基丙醛加氢催化剂的失活原因进行了研究。
That is, the biological efficacy of liquid methionine hydroxy analogue is only 65% in pig.
因此,液体蛋氨酸羟基类似物对猪的生物学效价只有65%。
As open-chain hydroxy aldehydes and hydroxyl ketenes, the monosaccharides are very reactive.
以开链的羟基醛和羟基酮形式存在的单糖非常活泼。
The technology of adsorption coagulation is used to pretreat acrylate-hydroxy ester wastewater.
采用吸附-混凝联合处理工艺对丙烯酸羟基酯废水进行预处理研究。
Objective: to explore the effect of hydroxy camptothecin on colorectal carcinoma cells in vitro.
目的探讨羟基喜树碱对肠癌细胞的体外作用。
GC MS analysis showed that the main metabolite of quinoline biodegradation is 2 hydroxy quinoline.
利用GCMS技术分析了喹啉降解过程,其主要的中间产物为2羟基喹啉。
The effect of cobalt and nickel p-hydroxy benzoates on the adhesion between NRand brass was studied.
研究了对羟基苯甲酸钴和对羟基苯甲酸镍对天然橡胶与黄铜粘合的影响。
The temperature reduction was shown to be an effective method for the most active C 6 hydroxy mono protection.
研究发现,降低温度是对蔗糖C6位最活泼羟基进行单一选择性保护的有效方法。
Isocyanate curing agents which when heated or reacted with hydroxy functional polymers giving urethane coatings.
异氰酸酯固化剂在加热的情况下与羟基聚合物反应形成聚氨酯涂料。
The quaternary ammonium salt and hydroxy ethyl cellulose were contained in a special organic chemical wastewater.
某厂特种有机废水,含季铵盐和羟乙基纤维素。
Synthesis methods of 3-benzyloxy glutaric nitrile which is the precursor of 3-hydroxy glutaric nitrile are discussed.
探讨了3-羟基戊二腈的前体3-苄氧基戊二腈的合成方法。
Solid racemated methionine (DLM) and methionine hydroxy analogue free acid (MHA-FA) are two usual methionine additives.
固体消旋蛋氨酸(DLM)和蛋氨酸羟基类似物自由酸(MHA - FA)是两种常用的蛋氨酸添加剂。
The product is made from hydroxy fatty acids lithium soap thickening high-grade basic oil and high-performance additive.
本产品由羟基脂肪酸锂皂稠化高级基础油并加入高效添加剂制成,是城市地铁轮轨的专用润滑脂。
The casting process and reverse osmosis (RO) properties of hydroxy-propyl cellulose acetate (HPCA) membrane were studied.
研究了羟丙基醋酸纤维素反渗透膜的制膜工艺和膜性能。
Taurine possesses protective activity against cadmium-induced DNA damage and hydroxy radical scavenging activity in vitro.
牛磺酸在体外对氯化镉引起的DNA损伤有预防作用。
We select the acetoxy group to protect the hydroxy group from a great number of the protection methods for the hydroxy group.
在众多的羟基保护方法中,选择了乙酰氧基对其进行了保护。
There is little study on the selection of liquid of pre - filming after the acid wash by hydroxy ethidine phosphonic acid (HEDP).
羟基乙叉二膦酸酸洗后预膜液的选择较少有人研究,而适当的预膜钝化是防止酸洗后金属表面返锈的必要措施。
Using the new method, 2 hydroxy 3 cyanmethyl 5 methyl acetophenone was synthesized in a short reaction period, and the yield was good.
采用新方法合成了鲜见文献报道的新化合物2 -羟基-3-氰甲基-5 -甲基苯乙酮。该方法具有反应时间短、操作简便、收率好等优点。
A new synthetic method glyceryl monolaurate(GML) from glycerin and lauric acid via protected hydroxy groups by boric acid was studied.
研究了以甘油、月桂酸为原料,用硼酸保护羟基进行酯化反应合成甘油单月桂酸酯的新方法。
Tetraacetyl glucosyl ester of 1 hydroxy 2 naphthoic acid was synthesized by PTC method and confirmed by IR, 1HNMR, MS and elemental analysis.
采用相转移催化法合成了1羟基2萘甲酸四乙酰葡萄糖酯,并进行了IR、1HNMR、MS和元素分析,证明了其结构。
The alpha hydroxy acid containing liposome was made by reverse phase evaporation method with high purity soya lecithin as synthetic material.
以高纯度大豆卵磷脂为包封材料,用反相蒸发法制备出果酸脂质体。
The composition of wall materials and the technology of spray -drying for the butylated hydroxy toluene (BHT) microencapsulation were studied.
研究了喷雾干燥法制备高包埋率微胶囊化二丁基羟基甲苯(BHT)的壁材组成及工艺条件。
As to alcohols containing the same number of carbon atoms in the molecules, their conversion will decrease as the number of hydroxy increases.
碳原子数目相同的醇,转化率随所含羟基数目的增加而下降。
Step II: Ganciclovir with a protected 2-amino group and one aliphatic hydroxy group protected is subjected to de-protection of the amino group.
第二步:2-氨基和一个脂链羟基被保护的更昔洛韦要脱除氨基保护。
Step II: Ganciclovir with a protected 2-amino group and one aliphatic hydroxy group protected is subjected to de-protection of the amino group.
第二步:2-氨基和一个脂链羟基被保护的更昔洛韦要脱除氨基保护。
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