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。
M-chlorocresol or 3-hydroxy-4-chlorophenol on treatment with p-nitrobenzoyl chloride was prepared and conyerted into substituted p-nitrobezyl ketone.
制备了用对硝基苯甲酰氯处理的间氯甲酚或3-羟基-4-氯苯酚，并转化为取代的对硝基苯甲酮。
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。
Suitable hydroxy-protecting groups are ether-forming groups that can be removed easily after completion of all other reaction steps.
任意基团在反应步骤完成后可以很容易地除去的基团都适合做羟基保护基团。
This was the first time to clone flavonoid 3 '-hydroxy-lase gene from genomic DNA of woody plants by thermal asymmetric interlaced PCR.
这是首次用热不对称交错pcr法从木本植物的基因组dna克隆到类黄酮3'-羟化酶基因。
Modified epoxy resin was produced by adding the isocyanate-terminated prepolymer obtained from hydroxy-terminated butadiene-acrylonitrile copolymer (HTBN).
通过添加由端羟基丁二烯——丙烯腈共聚物(HTBN)制得的端异氰酸酯基预聚物，可改性环氧树脂。
Objective:To estimate the feasibility of continuous target controlled infusion of isopropyl hydroxy-benzene in compound epidural block of epigastrium operation.
目的：评价持续靶控输注异丙酚复合硬膜外阻滞有用于上腹部手术的可行性。
Vanillin is prepared by electrolytic oxidation of 4-hydroxy-3-methoxymandelic acid which is obtained by reaction of electrolytic solution of oxalic acid and guaiacol.
本文利用草酸的电解液合成了4-羟基-3-甲氧基扁桃酸，经进一步电解氧化合成了香兰素，获得了满意的结果。
The electric structures of double-chain of hydroxy polyacene were studied by quantum chemistry crystal orbital CNDO/ 2 method, and considered the hydrogen-binding interaction of hydroxy-polyacene.
采用量子化学晶体轨道CNDO／2方法，在考虑了羟基代聚并苯氢键作用的基础上对其双链模型的电子结构进行系列的计算和讨论。
Add alpha hydroxy acids to your routine, and use a mask with algae to increase microcirculation and even out your skin.
平常添加一点阿尔法羟基酸，使用海藻面膜增强你皮肤的微循环和均匀度。
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。
BHA, or beta hydroxy acid, is a form of salicylic acid and is used in some topical exfoliants to reverse signs of aging.
或者betahydroxyacid，是水杨酸的一种，被用在一些局部去角质产品中来扭转老化迹象。
One potential downside is that alpha-hydroxy acids "thin out the epidermis, making it a little more sensitive to being sunburned," but not nearly as sensitive as it is to Retin-A, he said.
一个潜在的不利因素是阿尔法羟基酸“使表皮变薄，更加敏感从而易被阳光灼伤，”但它远不及Retin - A带来的敏感程度，他说。
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。
Method: the oxygen free radicals generation system in vitro and mouse liver homogenate lipid peroxidation reaction induced by hydroxy free radicals were used to estimate the effects.
方法：采用体外氧自由基生成系统和羟自由基诱导的小鼠肝匀浆脂质过氧化反应，评价炮制对桂枝抗氧化作用的影响。
Since the nucleic acids contain phosphonic group, basic group, desoxyribose hydroxy and double spiral species in nucleic acids, nucleic acids form easy multicomponent complexes with metal complex.
由于核酸含磷酸基团、碱基、脱氧核糖羟基以及双螺旋结构，使金属络合物容易在这些位置发生多元络合反应。
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%。
The inhibition of formaldehyde generation by butylated hydroxyanisole(BHT) and butylated hydroxy toluene(BHA) further supported this contention.
丁羟基甲苯（BHT）和丁羧基苯甲醚（BHA）对甲醛的产生的抑制作用进一步支持这一论点。
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。
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。
High strength silicone rubber compounds were prepared using vinyl-terminated silicone rubber, fumed silica and hydroxy siloxane by intensive mixing method in Z blade mixer.
采用Z桨捏合机，将端乙烯基硅橡胶、气相法白炭黑及羟基硅氧烷进行混炼，制备了高强度硅橡胶混炼胶。
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。
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。
This gas, also called Brown's gas, Oxyhydrogen, Hydroxy or Water-Fuel burns very smoothly and releases a LOT of energy.
这种气体，也称布朗的气体，氢氧，羟基或水燃料燃烧得非常顺利，释放了很多精力。
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。
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。
A new technology to produce hydroxy ethyl ethylene diamine using ethylene oxide is introduced in this paper. Its properties and application fields are also listed.
本文介绍了一种用环氧乙烷生产羟已基乙二胺的新技术，列举了羟乙基乙二胺的性能及应用范围。
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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