查询词典 vanillin

IV. The total synthesis of dehydrodiconiferyl alcohol and its dihydro-derivative The benzofuran skeleton was constructed by chemically oxidative couplingstarting from vanillin, then selective reduction with LiAI〓/〓 andhydrogenation in the presence of Pd-C followed reduction with LiAl〓respectively, to give dehydrodiconideryl alcohol and its dihydro-derivative, usefulin treating and preventing digestive system disorders, esp.

四、Dehydrodiconiferyl alcohol及其二氢衍生物的全合成以香草醛为起始原料，用化学氧化法一步建立氢化苯骈呋喃骨架，LiAlH〓／〓选择性还原以及催化加氢还原接着〓还原，分别合成了对预防和治疗消化系统疾病尤其是胃溃疡有显著效果的Dehydrodiconiferylalcohol及其二氢衍生物。

Blackcurrant, chocolate and chicory flavours are enhanced by slight herbal and savoury notes and sweet, vanillin oak.

黑醋栗，巧克力和菊苣的清新在干草和微酸的口感中得以提升，呈现出甜甜的香草橡木桶味

Synthetic vanillin is prepared from coal tar, which has no radioactivity.

合成的香兰素是通过处理煤焦油而得来的，是没有放射性的。

Their structures were characterized as dihydroconiferyl dihydro-p-coumarate, vanillin, apocynin, p-hydroxybenzaldehyde, syringaldehyde, syringic acid, syringylethanone,α-hydroxypropiosyringone, coniferyl aldehyde, dihydroconiferyl alcohol, 2-hydroxyphenylpropanol, and 3-hydroxy-4-methoxy-phenylethanol, respectively.

结果 从该植物中分离得到12个酚性化合物，其结构分别为二氢松柏醇二氢对羟基桂皮酸酯，香草醛，罗布麻宁，对羟基苯甲醛，丁香醛，丁香酸，丁香乙酮，α-羟基丁香丙酮，松柏醛，二氢松柏醇，2-羟基苯丙醇和3-羟基－4-甲氧基苯乙醇。

To establish a method for determination of total saponins of dolichos tenuicaulis Craib and crude extracts by UV. The samples were determined by UV after reaction with vanillin-perchloric acid,and ginsenoside Rg1 was selected as the standard.

大麻药是豆科扁豆属植物镰果扁豆的根和叶，在我国云南、四川、甘肃等地均有分布，尤其在云南有着丰富的植物资源，具有祛风活血，止血止痛等功效。

Results: The complex of astrogaloside and vanillin had excitation and emission maxima at 365 and 430 nm , respectively.

结果：黄芪甲甙与香草醛的反应产物的最大激发波长Ex=365 nm，最大发射波长Em= 430 nm。

It involved the converstion of vanillin into hydrazine (4) and the metalic reduction of hydrazine 4 into the intermediate vanillic amine.

以价廉易得的香草醛为起始原料，经过3步反应，高产率合成了酚羟基由对甲苯磺酰基保护的香草胺类化合物5。

Food and Feed Additives: crumb, vanillin, protein-calcium power, starch, shrimp shell, xylitol, calcium pantothenate, colistin sulfate, tea power, D-calcium pantothenate, alanine

食品和饲料添加剂：面包屑、香兰素、蛋白钙粉、淀粉、虾壳、木糖醇、泛酸钙、硫酸粘杆菌素、茶粉、 D-泛酸钙、丙氨酸

The oxidation of dihydrorhodamine 123 to fluorescent rhodamine 123 was also inhibited by vanillin.

氧化dihydrorhodamine123至123罗丹明荧光也抑制香兰素。

It is a medium-sized fine chemical industrial company, which is specialized in producing "Yuan Yi" Brand natural and synthetic perfumery series products such as Natural Vanillin, Terpinyl Acetate, Terpineol with perfumery and medical grade, etc…, also has the right to export and import.

厂房坐落于福建省三明市台江路8号，是一家专业生产"园益"牌天然香兰素、乙酸松油酯、松油醇、松油等天然及合成香料系列产品，具有自营进出口权的中型精细化工厂。

You'll be in trouble it you don't watch out .

如果你不注意，你会有麻烦的。

Shaped like a biconvex lens.Of, relating to, or having the form of a hyperbola.

双曲线的属于双曲线的，与之有关的，或有双曲线形状的