丁酸

It is broken down via phenylalanine to give acetyl CoA and fumaric acid.

它通过苯丙氨酸降解出乙酰辅酶 A 和反丁烯二酸。

The results show that the catalytic activity is mainly affected by the acid strength and number of acid center.

对合成甲基叔丁基醚反应的几种沸石分子筛进行研究，认为催化剂的活性主要受催化剂的酸强度及酸中心数影响。

Effect of ratio of dimethylol propionic acid to polybutylene adipate glycol on Tg and basic properties of films was studied.

考察了二羟甲基丙酸/聚己二酸丁二醇酯二醇比例对Tg以及膜基本性能的影响。

Cyclohexane with Mn as a catalyst in Trial 3 gave a total conversion of cyclohexane of 73% and 28.8% of which were oxygenates which contained 15.2% of dimethyl succinate, 19.6% of dimethyl glutarate and 65.2% of dimethyl adipate.

环己烷锰作为催化剂在审判3了总转化环己烷的73 ％和28.8 ％，其中含氧化合物其中载有15.2 ％的二甲基丁二酸， 19.6 ％的二甲基戊二和65.2 ％的二己二酸。

The studies segmented polyester polyurethaneurea elastomers based on 4,4'-diphenylmethane diisocyanate, ethylene diamine and polybutylene adipate (M. W. 1975 and M. W. 1228) were studied by means of IR spectrascopy.

用红外光谱法对基於4，4'-二苯基甲烷二异氰酸酯、乙二胺和聚己二酸丁二醇酯（分子量分别为1975和1228）的嵌段聚脲氨酯弹性体进行了研究。

Hydrogen bonding in hard segment domains of segmented polyester polyurethaneurea based on 4,4'-diphenylmethane diisocyanate, ethylene diamine and polybutylene adipate(M. W. 1975 and M. W. 1228) was studied by means of IR spectroscopy.

用红外光谱法对基於4，4'-二苯基甲烷二异氰酸酯、乙二胺和聚己二酸丁二醇酯（分子量分别为1975和1228）的两系列嵌段聚酯型聚脲氨酯硬段微区中的氢键化进行了研究。

Ingredients:Water、Collagen、Palmitoyl Pentapeptide、Sodium Hyaluronate、Seamollient、Gamma-Polyglutamic Acid、Evening Primrose Oil、Squalene、Algin、Aescufos、Arbutin、Tranexamic Acid、Myoxinol、Eyeseryl、Idebenone、Olive Extract、Vitamin E、Cetyl Alcohol、Glyceryl Monostearate、1-3butylene Glycol、Glycerin、Methyl Paraben、Perfume.

产品成份：去离子水、胶原蛋白、五胜肽、玻尿酸、海藻黏多醣体、纳豆聚麸胺酸、月见草油、海鲛鲨、藻胶、七叶树、熊果素、传明酸、六胜肽、四胜肽、艾地苯橙、橄榄萃取、维他命E、棕榈醇、单硬脂酸甘油酯、丁二醇、丙三醇、羟苯丙酯、香精。

Quinclorac and allyl alcohol as raw materials, 3, 7-dichloro-8-quinolinoxylic acid allyl ester was obtained when catalyst is oil of vitriol or super solid acid SO〓/TiO〓. Using both catalysts, organic synthesis technology process was made respectively, and the ester was analyzed and characterized by IR spectrum and NMR spectrum Through experiment, both preparing conditions were optimized and discussed respectively.

以TiO〓为载体负载SO〓制备出固体超强酸催化剂，确定了SO〓/TiO〓催化剂制备的技术路线，以丙酸正丁酯为探针实验，考察了新型固体酸催化剂SO〓/TiO〓的催化活性及制备条件对催化活性的影响，对影响其催化效果的工艺条件进行了优化，并探讨了影响的规律性。

Employing CuI(5 mol%), N,N-dimethylglycine hydrochloride(10 mol%) and K_2CO_3(2 equiv.) in refluxing THF as the optimized reaction conditions,the four-membered 4-alkylidene-2-azatidinones could be efficiently synthesized.

当以3-溴-3-N-苯基-丁烯酰胺为底物，在5 mol%CuI为催化剂，10 mol%N，N-二甲基甘氨酸盐酸盐为配体，2当量K_2CO_3作碱，THF回流的反应条件下，可以高效的合成2-亚甲基-4-氮杂环丁酮类化合物。

In the presence of aminosulfonic acid catalyst,lactic acid reacted with n butyl alcohol to form n butyl lactate .

以氨基磺酸为催化剂，实现了乳酸与正丁醇反应合成乳酸正丁酯。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。