• 正丁基苯甲酸

    Benzoic Acid Butyl Ester;

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  • 没有苯甲酸酯苛刻防腐剂葡萄柚提取物

    No parabens, harsh preservatives or grapefruit seed extract.

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  • 染料,香水羊毛脂对羟基苯甲酸酯甲醛

    FREE of Dyes, Perfume, Lanolin, Parabens and Formaldehyde.

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  • 本文报道了转移催化条件异成苯甲酸酯合成

    Synthesis of prenyl benzoate under phase transfer catalysis was reported.

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  • 安全有效,有利于有机护肤品人工色素合成香精苯甲酸酯

    Safe effective, pro-organic body care without artificial colors, synthetic fragrances or parabens.

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  • 开发一种催化合成二甘醇二苯甲酸酯(DEDB)的方法

    A novel preparation method to synthesize DEDB by using aluminium phosphotungstate catalyst was developed.

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  • 间甲基苯甲酸甘醇为原料,酸四丁为催化剂合成了二乙二醇二间甲基苯甲酸

    Diethylene glycol binary m-methyl benzoate was synthesized with diethylene glycol and m-methyl benzoic acid in the presence of tetrabutyl titanate.

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  • 塞克苯甲酸塞克硝唑本文主要塞克硝唑苯甲酸酯药理活性进行研究

    Secnidazole benzoate is a former drug of secnidazole, this paper mainly study on the pharmacological activity of secnidazole benzoate.

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  • 雌激素样物质包括已知化学物质对羟苯甲酸酯在内,常用于制作化妆品防晒霜保湿露。

    Oestrogen-like substances, including chemicals known as parabens, occur in cosmetics, sun creams and moisturising lotions.

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  • 用于催化合成甘醇二苯甲酸增塑剂 ,处理后固体催化活性重复使用寿命明显提高

    It was observed that the catalytic activity and the usable life of the treated niobic acid for synthesis of diethylene glycol dibenzoate was apparently higher than that of the untreated niobic acid.

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  • 幼儿吸收防腐剂)对羟基苯甲酸对羟基苯甲酸类防腐剂数量可能会产生类雌激素风险,导致内分泌系统障碍。

    The amounts that two-year-olds absorb from the [preservative] parabens propylparaben and butylparaben can constitute a risk for oestrogen-like disruptions of the endocrine system.

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  • 最近媒体报道来自上海零度可乐原液中含有“对羟基苯甲酸”防腐剂,引发了大家对饮料安全性的关注。

    Recent media reports that a batch of Coke Zero concentrate from Shanghai contained the banned preservative methyl-p-hydroxybenzoate sparked concern about the safety of beverages.

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  • 其中催化剂-苯甲酸丁烯性加生成反应产物手性决定步骤

    The turnover-limiting step for the asymmetric allylic oxidation is the formation of chiral catalyst-allyl perbenzoate complexes.

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  • 研究过氧化苯甲酸合成废水苯甲酸回收方法

    Methods of recycling benzoic acid was studied from wastewater of preparing peroxide of tert-butyl benzoate.

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  • 上述条件下苯甲酸产率70.5%。

    Under this conditions, the yield of propyl benzoate reached 70.5%.

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  • 上述条件下苯甲酸产率83 3%。

    Under this conditions, the yield of iso amyl benzoate reached 83.3%.

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  • 本文研究温度紫外光食品防腐剂山梨、对羟基苯甲酸稳定性防霉效果影响。

    In this paper, the affects of temperature and ultraviolet light on the stability and mildewproof effect of sorbic acid and ethyl-p-hydroxybenzoate used as food preserving agent, was studied.

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  • 结果对硝基苯甲酸收率达98%,硫酸绝大部分固体形式存在

    Results: the yield was over 98%, and most of the sodium bisulfate was in the solid form.

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  • 观察到使用苯甲酸洗液治疗妇女对照组妊娠结局没有显著差异

    No significant differences in pregnancy outcomes were observed between women treated with either BBL or permethrin and their matched controls.

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  • 采用于多相选择加氢方法甲氧基苯甲酸合成大茴香

    The present invention features the multiple phase selective hydrogenation process to synthesize anisic aldehyde with methyl methoxybenzoate.

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  • 一种对氧基苯甲酸选择加氢合成大茴香方法,属于精细化工催化技术领域

    The present invention relates to selective hydrogenation process of methyl methoxybenzoate to synthesize anisic aldehyde, and belongs to the field of fine chemical catalysis technology.

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  • 适宜反应条件下羟基苯甲酸壳聚糖130%、得80%以上。

    Under optimum reaction conditions, esterification degree of para-hydroxybenzoate chitosan ester was 130%, and yield reached 80%.

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  • 主要苯甲酰苯酚制备苯甲酸,然后重排、醚化所得

    It is based on phenol benzoate which is made from benzoyl chloride and phenol through rearrangement and etherification.

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  • 氢化苯甲酸应用催化剂量多少,似对产量影响,惟对氢化作用速度有关系。

    The amount of catalyst used for the hydrogenation of methyl benzoate and ethyl benzoate did not affect the yields, but affected the speed of hydrogenation.

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  • 以对甲苯磺酸催化剂,对二甲氨基苯甲酸异丁醇为原料合成对二甲氨基苯甲酸

    Isobutyl p-(dimethylamino) benzoate was synthesized by the esterification ofp-(dimethylamino)-benzoic acid with isobutanol using p-toluene sulfonic acid as the catalyst.

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  • 研究蔗糖及壳聚糖为涂膜剂,并配合防腐剂羟基苯甲酸青椒进行涂膜保鲜处理,观察青椒在贮藏期间硝酸盐含量的变化。

    The preservation of green peppers by using sucrose ester, chitin and propyl-p-hydroxybenzoate was studied, and the nitrite content of green pepper during storage was analyzed.

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  • 研究蔗糖及壳聚糖为涂膜剂,并配合防腐剂羟基苯甲酸青椒进行涂膜保鲜处理,观察青椒在贮藏期间硝酸盐含量的变化。

    The preservation of green peppers by using sucrose ester, chitin and propyl-p-hydroxybenzoate was studied, and the nitrite content of green pepper during storage was analyzed.

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