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Cu furaldehyde-ethylene diamine Schiff base complex was synthesized with the yield of 63.

合成了一种席夫碱金属络合物——呋喃甲醛乙二胺铜络合物,收率为63。

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The average molecular weight of polyoxytetramethylene glycol could be flexibly controlled by varying the...

未反应的四氢呋喃经适当处理后可以回收循环使用。

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A novel furan resin was synthesized by polycondensation between furfuralcohol and furfural.

醛缩聚制备了呋喃树脂。

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Dibenzofuran(DF) is one of the model compounds for the study of biodegradation of dioxin-like pollutants.

二苯并呋喃(DF)是研究二英类化合物生物降解的模式化合物之一。

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Some new components were detected in the finished products, such as Hexanal, methyl-Cyclopentane, Heptanol, 2-Pentyl-Furan, Isophoron, and others.

阴干茶样中检测到的增的香气成分:正己醛、甲基环戊烷、庚、2-正戊基呋喃、异佛尔酮。

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Objective To explore the relationship between the illuminance and the observed order of reaction of photodegradation of nitrofurazone solution.

摘要目的研究呋喃西林水溶液解反应的表观反应级照度的关系。

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Carbasugars,carbocyclic analogues of true sugars,are compounds in which the ring-oxygen of furanoid or pyranoid sugars is replaced by methylene group.

碳环糖是一类呋喃或吡喃糖环中的氧原子被亚甲基取代后形成的糖类似物。

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Furfuryl propionate was synthesized from furfuryl alcohol and propionyl chloride using hexahydropyridine as catalyst and anhydrous sodium bicarbonate as acid-caputor.

以α呋喃丙酰氯为原料,以六氢吡啶为催化剂,无水碳酸氢钠为缚酸剂合成了α呋喃丙酸酯。

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Two production methods for preparing furan through decarbonylation of furfural were introduced: i.e. liquid phase reaction and gas phase reaction.

摘要介绍醛脱羰法制备呋喃的2种生产方法:液相法气相法。

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119.0 g of cyclopentyl bromide and 19.4 g of magnesium are reacted in ether or THF to give a cyclopentyl Grignard reagent.

119克环戊溴19.4克镁在空气中或者四氢呋喃中加入环戊格林尼亚试剂作发生反应。

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The two now isonicotnic acid hydrazone and N-oxide isonicotinic acid hydrazone of ethyl furoyl acetates were synthesised. The condensations were carried out in ethyl alochol medium.

合成了呋喃甲酰乙酸乙酯异烟酰腙呋喃甲酰乙酸乙酯N-氧化异烟酰腙。缩合反应在乙中进行。

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Shell carbon black can be used to modify furane resin for significantly enhancing its electrostatic resistance and impact resistance,so that it is of greater suitability value.

采用谢尔炭黑改性呋喃树脂,能显著提高其抗静电、抗冲击性能,具有较大实用价值。

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Compared with that of furane resin bonded sand,the feasibility of phenol resin bonded sand in forming a uniform coating layer in the inside mould surface is studied as well.

本文分析研究了砂在铸型中的成型条件及洁内表面的形成机理,并对比研究了覆膜呋喃自硬砂在铸型内表面形成均匀覆砂层的可行性。

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Scishow 精

Furanocoumarins aren't toxic cell-damaging chemicals on their own.

呋喃香豆素本身并非是有坏细胞化学物。

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Reel知识卷轴

The hybrid, a cross between pomelos and red grapefruit has a fraction of the levels of furanocoumarins.

这种杂交品种是柚子和红柚子杂交品种,它呋喃香豆素含量只有一小部分。

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Osmosis-微生物

Staph saprophyticus infections can be treated with antibiotics like nitrofurantoin, or a combination of trimethoprim and sulfamethoxazole.

目前,腐生葡萄球菌感染可以用呋喃妥因等抗生素或联用甲氧苄啶与磺胺甲恶唑进行治疗。

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WIL生活启示录

Photo sensitizers, technically called " furanocoumarins" are toxins in plants that make animals and humans sensitive to light.

光敏剂,专业上称为“呋喃香豆素”,是植物中素,能动物和人类对光敏感。

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Osmosis-微生物

Treatment relies on antibiotics like nitrofurantoin, or a combination of trimethoprim and sulfamethoxazole, as well as removing infected indwelling devices.

治疗依赖于呋喃妥因等抗生素,或联用甲氧苄啶与磺胺甲恶唑,并同时移除受感染留置医用器械。

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SciShow - Chemistry

Furanocoumarins aren’t toxic cell-damaging chemicals on their own.

呋喃香豆素本身并不是有细胞损伤化学物质。

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SciShow - Chemistry

That way, they keep their furanocoumarin-riddled food in the dark, so UV light doesn’t activate these toxic compounds.

这样,他们就能把含有呋喃香豆素食物放在黑暗中,以防紫外线激活这些有化合物。

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Scishow 精

This bad skin reaction is caused by certain furanocoumarins, a group of compounds that some plants use to defend themselves and deter hungry herbivores.

该不良皮肤反应是有呋喃香豆素这种某些植物用于自卫并抵制饥饿食草动物化合物引起

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Scishow 精

Furanocoumarins are also found in bergamot oranges, which are a part of the iconic Earl Grey tea smell, and were a popular ingredient in perfumes.

呋喃香豆素也在佛手柑中被发现,它们是伯爵茶标志性味道组成成分,也是香水中很受欢迎一种成分。

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Scishow 精

As humans, our opposable thumbs and culinary arts have helped us get around a lot of plant defense systems, but furanocoumarins can still affect us if we're not careful.

作为人类,我们进化成熟并掌握烹饪技术帮助我们避开了很多植物自我防卫统,但是如果我们不小心,呋喃香豆素还是会对我们造成影响

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Osmosis-微生物

In this case, the stool culture can be helpful in deciding which antibiotics would be most effective against the infecting strain, and may include tetracyclines, ciprofloxacin, ofloxacin, furazolidone, or trimethoprim-sulfamethoxazole.

粪便培养可以帮助确定哪种抗生素对感染菌株最有效,可用药物包括四环素、环丙沙星、氧氟沙星、呋喃唑酮或甲氧苄啶-磺胺甲恶唑。

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Scishow 精

With the energy from the UV radiation in sunlight, furanocoumarins can undergo a chemical reaction and bind to certain bits of DNA inside another creature's cells, messing with the DNA's structure.

在阳光中紫外线辐射作用下,呋喃香豆素就会发生化学反应,并且将少量某些DNA植入另一种生物细胞内,坏这些DNA结构。

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SciShow - Chemistry

As humans, our opposable thumbs and culinary arts have helped us get around a lot of plant defense systems, but furanocoumarins can still affect us if we’re not careful.

作为人类,我们对掌拇指和烹饪技艺帮助我们绕过了许多植物防御统, 但如果我们不小心, 呋喃香豆素仍然可能影响我们。

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SciShow - Chemistry

With the energy from the UV radiation in sunlight, furanocoumarins can undergo a chemical reaction and bind to certain bits of DNA inside another creature’s cells, messing with the DNA’s structure.

在阳光中紫外线辐射能量作用下,呋喃香豆素可以发生化学反应, 并与生物细胞内某些DNA片段结合, 从而干扰DNA结构。

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Scishow 精

Limes, for instance, have a cocktail of three furanocoumarins that are concentrated in the juice and peel, ready to be released and activated whenever the fruit is bitten—or squeezed into your favorite drink on a beach day.

例如,酸橙汁和果皮中就含有三种呋喃香豆素,一旦被咬,或者是在海边被你挤进最爱饮料时,就会随时准备被激发。

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