叔丁基羟基茴香醚(BHA)和二叔丁基对甲酚(BHT)不仅用于保护食品，还被用来保存化妆品和药品中的油脂。
In addition to preserving foods, BHA and BHT are also used to preserve fats and oils in cosmetics and pharmaceuticals.
叔丁基羟基茴香醚（BHA）和二叔丁基对甲酚（BHT）的氧化特性和/或代谢产物也许具有致癌性或致瘤性，不过，同样的反应也有可能应对氧化压力。
The oxidative characteristics and/or metabolites of BHA and BHT may contribute to carcinogenicity or tumorigenicity; however the same reactions may combat oxidative stress.
它将点燃固体推进燃料(HTPB，或称羟基封端聚丁二烯)和液体氧化剂(高挥发性过氧化物，HTP)的混合物持续20秒。
It will burn a mixture of solid propellant (HTPB, or hydroxyl-terminated polybutadiene) and liquid oxidiser (high-test peroxide, HTP) for 20 seconds.
换句话说，他司美琼不仅仅只是起到安定和羟基安定这样的苯（并）二氮类药物的镇定作用。
Tasimelteon is not, in other words, merely acting as a sedative in the way that benzodiazepines such as diazepam and temazepam do.
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.
用月桂酰氯对二氢杨梅素的羟基进行酯化，合成了二氢杨梅素月桂酸酯。
Hydroxy in dihydromyricetin (DMY) was esterified with lauroyl chloride and dihydromyricetin laurate (DMYL) was synthesized in this investigation.
研究表明，棓酰类多元酚可与铝形成络合物，其络合物是铝和棓酰基中苯三酚的邻位二羟基形成的，它是稳定的五员螯合环结构；
It is show that the complexes of galloyl type hydrolysable tannins with aluminum are formed which involve five-member ring stably formed adjacent hydroxyl groups in galloyl to aluminum atoms.
合成了以羟基封端的脂肪族聚碳酸酯-聚乙基醚碳酸酯二醇（PEECD），并用于环氧（EP）树脂的增韧。
One kind of hydroxyl - terminated aliphatic polycarbonate, i. e. poly(ethylene ether carbonate) diol(PEECD) was synthesized and used to toughen epoxy resin (EP) .
利用二维核磁共振技术对一类新的含羟基中环二胺及其衍生物在水溶液中的构型和构象进行了较为详尽的研究。
NMR techniques were used to investigate the stereo configuration and conformation of the hydroxyl mesocyclic diamines and their derivatives in aqueous solution.
对铁基复合氧化物催化苯酚羟基化合成苯二酚反应过程酚焦油的生成反应进行了模拟研究。
The simulating study of the formation and inhibition of phenolic tars in the process of diphenols preparation by hydroxylation of phenol with iron-based composite oxides as catalyst was conducted.
着重介绍用过氧化氢和过氧化羧酸作羟基化剂，使苯酚羟基化生成邻苯二酚和对苯二酚的研究开发进展。
Research and development for fhe production of pyrocatechol and hydroquinone by reaction of phenol with hydrogen peroxide and percarboxylic acid as hydroxylating reagent are introduced.
聚胺酯泡沫通过多羟基化合物上的羟基和二异氰酸酯反应形成。
The foam was prepared through a reaction of the hydroxyl groups with diisocyanate.
二羟基丙酮及其衍生物作为一种重要的化工、生化原料，在精细化工、制药、食品、化妆品工业和水质净化等方面潜在广泛的应用前景。
Dihydroxy acetone and its derivatives are important chemical or biochemical materials, which have been widely applied in chemistry, pharmacy, food, cosmetic industry and purification of water.
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。
The composition of wall materials and the technology of spray -drying for the butylated hydroxy toluene (BHT) microencapsulation were studied.
分开的卤化物从第二个水分子得到一个质子，同时产生的羟基配合体与乙烯反应，留在了金属的配位区内。
The departing halide extracts a proton from the second water and the generated hydroxyl ligand reacts with the ethylene, while remaining in the coordination sphere of the metal.
采用羟基自由基体系和超氧阴离子自由基体系对藏红花酸及藏红花酸二甲酯的体外抗氧化活性进行研究，并与BHT进行比较。
At last, using the hydroxyl radical system, superoxide radical system, the antioxidation activities of crocetin and crocetin dimethyl ester were studied and compared with BHT.
介绍了用苯甲酸改性的含羟基醇酸树脂和甲苯二异氰酸酯（TDI）预聚物的合成工艺，以及由二者制成醇酸型聚氨酯涂料的方法；
The synthetic process of a prepolymer based on benzoic acid modified hydroxyl alkyd resin and toluene diisocyanate (TDI) prepolymer and the coatings made from this prepolymer has been described.
探讨了烷氧基硅烷封端率及端羟基聚丁二烯的含量对单组分密封胶的力学性能、硬度及表干时间的影响。
The effects of different silane end-capped ratios and HTPB content on mechanical properties, hardness and surface dry time of the sealant were discussed.
本文报道了利用超瑞利散射（HRS）技术研究7-羟基喹啉（7HQ）的二阶非线性光学性质。
The second order optical nonlinearity of 7 hydroxyquinoline (7HQ) was investigation by using hyper Rayleigh scattering (HRS) method.
方法采用国产羟基磷灰石义眼座于二期置入无眼球的眼窝。
Methods a homemade hydroxyapatite artificial eye pedestal was implanted into the eye socket without eyeball in every patient.
目的：观察1,25 -二羟基维生素d3对白血病细胞株hl - 60的分化诱导作用及其分子机制。
AIM To investigate the differentiation induction of 1 25-dihydroxyvitamin D3 on leukemic cell line HL-60 and its molecular mechanism.
将端羟基聚丁二烯与聚氨酯进行共混改性，提高了聚氨酯基体的表观交联度及推进剂的拉伸强度。
When blend modification of HTPB and PU are done, the apparent crosslinking density of PU matrix in - creases, and the tensile strength of propellant enhances.
反式3,4 '，5 -三羟基二苯乙烯在制备治疗乙型肝炎病毒感染药物中的用途。
Use of trans-3, 4, 5-trihydroxy-diphenyl in preparation of medicine for resisting hepatitis B virus.
在选定的色谱操作条件下，2-（4-羟基苯氧基）丙酸与杂质对苯二酚等之间具有良好的分高效果。
Under the selected conditions of the chromatographic operation, there was the better separation efficiency between 2-(4- hydroxyphenoxy) propionic acid and impurities(such as hydroquinone, etc).
邻苯二甲酸的两个羧基上的羟基会发生缩水反应，最终生成邻苯二甲酸酐。
The condensation reaction takes place between the two hydroxyl of phthalic acid, and the phthalic acid be converted into phthalic anhydride finally.
此外，在保证重要药效特征的基础上，还选择了4-羟基-喹啉、喹啉和二茂铁类作为芳环A端的构建单元。
In addition, other building blocks such as 4-hydroxy-quinoline, quinoline, and ferrocene were incorporated into group A for our combinatory library design, alternativly.
研究了新显色剂2 ，4 二羟基苯甲醛缩氨基硫脲（DBT ）与铜的显色反应，建立了光度法测定微量铜的新方法。
A new method for the spectrophotometric determination of trace copper with 2,4 dihydroxybenzaldehyde thiosemicarbazone(DBT) is reported in this paper.
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。
Modified epoxy resin was produced by adding the isocyanate-terminated prepolymer obtained from hydroxy-terminated butadiene-acrylonitrile copolymer (HTBN).
这提示1,25二羟基维生素d 3口服制剂的浓缩剂型，将有利于其吸收利用。
It is indicates that the concentrated capsule of 1, 25-dihydroxyvitamin D3 oral preparation would be in favor of absorption and utilization.
这提示1,25二羟基维生素d 3口服制剂的浓缩剂型，将有利于其吸收利用。
It is indicates that the concentrated capsule of 1, 25-dihydroxyvitamin D3 oral preparation would be in favor of absorption and utilization.
应用推荐