有奖纠错
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Water (Aqua), Glycerin, Propylene Glycol, Hydroxyethylcellulose, Tetrasodium EDTA, Citric Acid, Sodium Benzoate.

水(水) ,甘油,丙二醇,羟乙基纤维素, Tetrasodium乙二胺四乙酸,柠檬酸,苯甲酸钠。

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This investigation provided an environment-friendly process for the synthesis of methyl anthranilate.

摘要提供了一种环境友好合成工艺制备香料邻氨基苯甲酸甲酯。

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The reaction principal, reaction procedure and flowsheeting in the potassium sulfate method are included.

给出了甲酸钠法应过程以及工艺流程。对料消耗、产品规格及质量测定作了简单介绍。

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Method The target compound was synthesized from clarithromycin via hydrolyzation,acetylation,cyclic carbonatation,oxidation,decarbonatation,acylation,cyclic carbamatation and cyclization.

方法以克拉霉素为起始料,经水解、乙酰化、环碳酸酯化、化、脱碳酸酯化、酰化、环氨基甲酸酯化和环合等应合成目标化合物。

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The toxicity effect of 6 carbamic ester pesticides on Anabaena flos-aquae was studied.

以水华鱼腥藻为材料研究了6种氨基甲酸酯类农药对藻类效应。

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Seamless sheath of ether-based urethane resistant to cathodic, hydraulic and other environmental conditions.

无缝铠装乙醚基氨基甲酸乙酯。耐阴极、液压和其它环境条件。

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A simultaneously potentiometric titration method for determining benzaldehyde and benzoic acid in electrosynthesis products was reported.

采用电位滴定法测定甲苯电合成产物中苯甲醛和苯甲酸,研究了盐酸羟胺用量、苯甲醇和甲苯含量对测定影响。

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It is ascertained that the PABA may be N-dimethylated using dimethyl sulfate as a methylation agent.

确定以硫酸二甲酯为N——甲基化剂,对对氨基苯甲酸PABA进行N——二甲基化.

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Mazindol was synthesized by four steps from chlorobenzene and phthalic anhydride in an overall yield of 23.4%.

以氯苯和邻苯二甲酸酐为起始料,经四步工序合成马吲哚,总收率为23.4%。

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By using phase transfer catalyst, the yield of the preparation of cyclopropane carboxylic isopropyl ester was increased.

在环丙甲酸异丙酯合成应中,通过相转移催化剂提高了应收率。

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The effect that isopropyl xanthogen ethyl formate is synthesized with isopropyl xanthate under differ condition has been studied.

考察了不同条件对异丙基黄药合成异丙基黄甲酸乙酯影响。

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Thioxanthone photoinitiator was synthesized from DTSA by chlorination and condensation with isopropylbenzene in the presence of anhydrous AlCl3.

以二硫代二苯甲酸(DTSA)经过酰氯化、氯代、然后与异丙苯在三化铝催化下缩合成为光引发剂。

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The results revealed that there was the toxicity effect of 6 different carbamic ester pesticides on Anabaena flos-aquae.

结果发现,6种氨基甲酸酯类农药对水华鱼腥藻都有不同程度作用。

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The effects of polyisobutene, LaF3, MCA, dialkyldithioaminoformaite on properties of lithium-calcium base grease have been discussed in this paper.

考察了聚异丁烯、氟化镧、三聚氰胺氰尿酸复合物(MCA)、硫代氨基甲酸盐对锂-钙基脂影响。

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A planar tetradentate dinuclear ligand, 3, 5-bis(2-pyridyl) pyrazole, was synthesized by a three-step reaction of esterification, condensation and addition.

以2-吡啶甲酸料,经酯化、缩合、加成合成了平面四齿双核配体3,5-二(2-吡啶基)吡唑。

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Amino phthalhydrazide was synthesized from phthalic anhydride by four steps of nitrationidehydration, hydrazinolysis and reduction reactions in this paper.

以邻苯二甲酸酐为料,经硝化、脱水、肼化、还等步骤合成了3-氨基邻苯二甲酰肼。

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(-)-Methyl mandelate was produced by asymmetric reduction of methyl benzoylformate catalyzed by Saccharomyces cerevisiae LH1 screcned by our laboratory.

采用本实验室筛选到酿酒酵母LH1催化苯甲酰甲酸甲酯不对称合成(R)-(-)-扁桃酸甲酯。

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The preparation of hydroxyacetone was studied by esterification of chloroacetone with sodium formate and alcholysis of acetonyl formate with methanol.

以一氯丙酮、甲酸钠和甲醇为料经酯化与醇解两步应合成羟基丙酮,研究了应条件对相转移催化酯化以及醇解应蒸馏过程影响。

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Two kinds of bis-hydroxyalkyl or bis-methyl formylate subtituted bis-ethylenedithio-tetrathiafulvalenes (BEDT-TTF) and their charger-transfer complexes (CT-complexes ) with TCNQ were synthesized.

合成了带双羟烷基及双甲酸甲酯基取代两种双二硫代亚乙基四硫代富瓦烯(BEDT-TTF)衍生物及其它们与TCNQCT-络合物。

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Xanthone was efficiently synthesized from o-chlorobenzoic acid first by etherization and then by Friedel-Crafts reaction in the presence of aluminium trichloride.

以邻氯苯甲酸料,先进行醚化,再在三氯化铝作用下进行傅-克应,可简洁、高效合成呫吨酮。

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经济学人-科技

Usually it is synthesised either from methanol and formic acid, or methanol and carbon monoxide.

通常它由甲醇和甲酸,或甲醇和成。

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华尔街日报

The preservative used in this product is sodium benzoate.

本产品使用的防腐剂为苯甲酸钠。

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环境与科学

Nonylphenols or phthalates aren't due to regular human activity?

壬基酚或邻苯二甲酸盐不是来源于人类的日常活动?

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当月 CNN 10 学生英语

Studies have shown about 100% of Americans have phthalates in their body.

研究表面,所有的美国人体内都含有邻苯二甲酸盐。

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Reel知识卷轴

Phthalates as a class are called anti-androgens.

邻苯二甲酸盐作为类被称为抗雄激素。

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华尔街日报

The company said it recently shifted away from this preservative combination to one with sodium benzoate.

司表示,它最近已从这种防腐剂转向苯甲酸钠。

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华尔街日报

They claim that this bottle is paraben free.

他们说这瓶不含对羟基苯甲酸酯。

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经济学人-科技

The known syntheses are effective, and methyl formate is already cheap.

甲酸甲酯熟知的成方法很有效,而且它很便宜。

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环境与科学

Then we also have a few phthalates that exceed the limits set out by EU quality standards.

还有些邻苯二甲酸盐——也超出了欧盟质量标准的限制。

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VOA视频精选

What we know is that a group of substances, the phthalates represent a threat to our health.

我们知物质,邻苯二甲酸盐,能对我们的健康构成威胁。

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华尔街日报

I would agree that this is a paraben-free product.

我同意这是不含对羟基苯甲酸酯的产品。

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华尔街日报

The paraben issue is a very provocative topic.

对羟基苯甲酸酯问题是个非常具有挑衅性的话题。

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Scishow 精选系列

Denatonium, in its marketed form “Bitrex, ” has held the Guinness World Record for bitterest substance for half a century.

苯甲地那铵的市场推广形式是“甲酸苄铵酰胺”,半个世纪以来,它直是吉尼斯世界纪录最苦物质的保持者。

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华尔街日报

There have been some preliminary studies that show that there could be possible linkage between parabens and cancer.

些初步研究表明对羟基苯甲酸酯和癌症之间可能存在联系。

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大西洋月刊(文章版)

They include things you might have heard of, like phthalates, that have also been associated with lots of harmful health outcomes.

它们包括你可能听说过的东西,比如邻苯二甲酸盐,它也与许多有害的健康后果有关。

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Crash Course 综

Now benzoic acid is one of literally infinite possible benzene-based compounds.

现在苯甲酸是几乎无限可能的苯基物之

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透视百科影视类

So they used a urethane resin for light, tough, and hollow nails.

所以他们使用了氨基甲酸酯树脂来制作轻便、坚固且中空的指甲。

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Good For You

It's cruelty free, paraben and sulfate, not Pat, but the cream.

它不含残忍成分,无对羟基苯甲酸酯和硫酸盐,不是帕特,而是这款面霜。

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Good For You

Paraben and sulfate free, backed by real ingredients and real results in over 100,000 women.

无对羟基苯甲酸酯和硫酸盐,以超过十万女性的真实成分和实际效果为支撑。

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The Viall Files

It's baking soda free and paraben free.

它不含小苏打,也不含对羟基苯甲酸酯。

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