丁二酸

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。

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。

An ester or a salt of perchloric acid .relating to or producing butyric acid .

顺丁烯二酸氧化形成的酸（如在脂肪和碳水化合物的新陈代谢中）。

Di-methyl fumarate is an effective preservative containing such group, but it is banned to used in food because of its skin allergy.

反丁烯二酸二甲酯即为一种含有该功能团的广谱、高效、低毒的防腐剂，但由于其致皮肤过敏性在食品工业中得不到广泛的应用。

An acid formed by oxidation of maleic acid (as in metabolism of fats and carbohydrates).

顺丁烯二酸氧化形成的酸（如在脂肪和碳水化合物的新陈代谢中）。

After it was adjusted with ammonia until the test paper turned purple,in subacid medium of pH 6～7 ammonium acetate buffered solution,bivalent nickel was precipitated quantificationally by dimethylglyoxime.

试样以稀硝酸溶解高氯酸冒烟后，酒石酸掩蔽剂将铁等干扰元素配位掩蔽，以氨水调节至刚果红试纸呈紫色后，在pH6～7的乙酸铵缓冲溶液微酸性介质中，二价镍定量地被丁二酮肟沉淀。

The results showed in the seven food preservative s,that calcium propionate had no effect on the growth of Peronophythoral litchii,while cinnamyl glyceroyl fumarate was the best.

结果表明：在所用的7种食品防腐剂中，丙酸钙对荔枝霜疫霉菌的生长无抑制作用，反丁烯二酸桂醇甘醇酯的抑菌效果最好

In this experiment we use the alcohol to replace the Fumaric acid and using the NaOH and HCl to control the pH number.

而本实验就是以过锰酸钾加入酒精以代替过去使用的反丁烯二酸并以HCl及NaOH来调控其酸碱值并比较其反应后的各种性质。

The Polyether Polyurethane elastomer were prepared from hydroxyle-terminated polybutadiene, isophorone diisocyanate, 1,4-butylcne glycol, stannous octoate and SiO_2 in direction.

以端羟基聚丁二烯、异佛尔酮二异氰酸酯、1，4-丁二醇、白碳黑、辛酸亚锡等为原料，采用一步法制备了聚烯烃型聚氨酯弹性体材料。

By using gas chromatography technique nine kinds of fragrance components(acetic aldehyde,ethyl acetate,ethanol,propyl acetate,3-hydroxy-2-butanone,acetic acid,furfural,metacetonic acid,2,3-butylene glycol)were measured quantitatively in different kinds of Shanxi overmature vinegar and the other kinds of vinegar.

应用气相色谱方法对山西老陈醋和其他种类醋的9种香气成分(乙醛、乙酸乙酯、乙醇、乙酸丙酯、3-羟基-2-丁酮、乙酸、糖醛、丙酸、2，3-丁二醇)进行了定性、定量测定，并用聚类分析、模糊综合评判、方差分析、回归分析的方法对实验结果进行了数理分析。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。