戊酸

Rnithine alpha-Ketoglutarate, or OKG, is a combination of the amino acid ornithine and alpha-ketoglutaric acid.

KG是一种化学合成剂，由鸟氨酸和α-酮戊二酸（alpha-ketoglutarate）结合构成。

In this study, we evaluatedthe antinociceptive and antiinflammatory effects and durationof action of several novel depots of ketorolac esters, suchas ketorolac propyl ester, pentyl ester, heptyl ester, and decylester, and observed whether they had a long-acting effect.

在这个研究中，作者评估了几种酯类酮咯酸的新制剂的抗伤害、抗炎效应和作用持续时间，例如，丙基酯，戊基酯，庚基酯和葵酯酮咯酸，观察他们是否长效。

With propanal and malonate as reaction agents and piperidine as the catalyst, Knoevenagel reaction was used in the synthesis of flavor 2-pentenoic acid.

以丙醛和丙二酸为原料，哌啶为催化剂，采用Knoevenagel反应合成了食用香料2-戊烯酸反式构型，产率64.2%，其具有干酪味、淡烤香味。

The results showed that solid hetero-polyacid salt TiSiW12O40/TiO2 was a good catalyst for synthesizing iso-amyl propionate.

实验结果表明：固体杂多酸盐TiSiW12O40/TiO2对丙酸异戊酯的合成具有良好的催化活性。

The result was shown as follows:compared with the good quality beer,the diacetyl,aldehyde,islobutyl alcohol,isoamyl alcohol and total acid were higher,however,propyl alcohol and ethyl butyrate were lower

研究中还发现污染细菌后的发酵过程中的pH下降迅速，降糖加快，最终得到的啤酒中双乙酰、乙醛、异戊醇、异丁醇和总酸偏高，而正丙醇、丁酸乙酯含量偏低。

People with beriberi, a disease caused by thiamin deficiency , have elevated levels of blood pyruvate and a-ketoglutarate, especially after consuming a meal rich in glucose.

脚气病是一种维生素缺乏症，脚气病人的血液中有高水平的丙酮酸和α-酮戊二酸，尤其是在进食了一顿富含葡萄糖的食物之后。

Separation of them and synthesis, biological activities of their derivatives are of great signfication in development of advanced-processed products of resin.In this paper, Abietic acid with 90.9% and 97.5% purity were obtained using A amine salt method and B amine salt method for the first time.

本文提出两种提纯高纯度枞酸的新方法，即A胺盐法和B胺盐法，A胺和B胺均为自制品，通过A胺盐法和B胺盐法可分别得到纯度为90.9%和97.5%的高纯度枞酸，成本仅为文献报道常用的二戊胺盐法成本的1/5和1/3。

These products are made by the transesterification of lauryl alcohol and methyl laurate, stearyl alcohol and methyl palmitate and stearyl alcohol and methyl behenate.

这些产品是通过十二醇和戊酮酸甲酯、硬脂醇和棕榈酸甲酯、硬脂醇和苯甲酸甲酯的脂交换反应得来。

Briefly, coronal brain sections (100 mm)were cut with a vibratome, postfixed with 4% glutaraldehydein 0.1 mmol/L cacodylate buffer (pH 7.4) for 1 h, andthen with 1% osmium tetroxide in 0.1 mmol/L cacodylatebuffer for 2 h. After rinsing with distilled water, the brainsections were treated with 1% aqueous uranyl acetateovernight, dehydrated in an ascending series of ethanolsto 100%, followed by dry acetone, and then embedded inDurcupan ACM. Ultrathin sections (0.1 mm) were cut andstained with 3% lead citrate and subsequently examinedwith a Zeiss transmission electron microscope (Zeiss Inc.,Thornwood, NY, USA).

简单的说，先用切刀制成100um的冠状脑切片，然后用含有4%戊二醛在0.1 mmol/L的二甲砷酸缓冲液(PH7.4)中固定1小时后，放在含有1%四氧化锇的0.1 mmol/L的二甲砷酸缓冲液中2小时，接着用蒸馏水冲洗后，放在1%的aqueous uranyl acetate中过夜，接下来用梯度酒精(至100%)脱水，然后用丙酮干燥，再用Durcupan ACM包埋，切成0.1um的超薄切片后用3%的lead citrate染色，随后用透射电子显微镜观察。

Objective: To use p-toluene sulfonic acid as the catalyst for the esterification reaction of cinnamic acid with isoamyl alcohol in liquid phase.

目的：以对甲苯磺酸为催化剂对肉桂酸与异戊醇的液相酯化反应进行研究。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。