苯丙烯酸的生物毒性大于对羟基苯甲酸。
Cinnamic acid had more greater action intensity than p-hydroxy benzoic acid.
这是一个没有对羟基苯甲酸酯类天然产物。
不含染料，香水，羊毛脂，对羟基苯甲酸酯和甲醛。
不含防腐剂、人工色素、香料、矿物油，对羟基苯甲酸甲酯、矿油。
Free of preservatives, artificial color, fragrance, mineral oil, parabens, petroleum.
研究了对羟基苯甲酸钴和对羟基苯甲酸镍对天然橡胶与黄铜粘合的影响。
The effect of cobalt and nickel p-hydroxy benzoates on the adhesion between NRand brass was studied.
在适宜的反应条件下，对羟基苯甲酸壳聚糖酯酯化度可达130%、得率80%以上。
Under optimum reaction conditions, esterification degree of para-hydroxybenzoate chitosan ester was 130%, and yield reached 80%.
本文研究了一种固体酸催化剂—阳离子交换树脂催化剂，用于对羟基苯甲酸的酯化反应。
In this paper, the strong acid ion exchange resins have been studied as the solid-acid catalyst for the esterification of 4-hydroxybenzoic acid.
本文研究了温度和紫外光对食品防腐剂山梨酸、对羟基苯甲酸乙酯的稳定性和防霉效果的影响。
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.
分析了添加不同量的对羟基苯甲酸或对羟基苯甲酸甲酯对样品凝聚粒子含量及流变性能的影响。
The effects of the amount of additive on the coagulate particle contents and rheologic properties are analyzed.
以维生素C为催化剂， 对羟基苯甲酸和十六醇及十八醇为原料合成尼泊金十六酯与尼泊金十八酯。
Nipagin esters were synthesized by the esterification of dodecyl and octadecyl alcohol with p -hydroxybenzoic acid in the presence of vitamin C.
主要成份：去离子水、氢化聚癸烯、对羟基苯甲酸甲酯、对羟基苯甲酸丙酯、丙烯酸共聚物、矿物油、香料。
INGREDIENTS: Deionized water, hydrogenated poly-decene, methyl p-hydroxybenzoate p-hydroxybenzoic acid propyl, acrylic acid copolymer, mineral oil, daily flavor.
对结构相似的苯酚、对羟基苯甲酸、对氨基苯甲酸等响应不灵敏，对结构差异较大的如维生素C等几乎无响应。
Structural analogs, such as phenol, p-hydroxybenzoic acid and p-aminobenzoic acid, only small responses electrode were observed. Moreover, structural unanalog vitamin C had almost no response.
最近的媒体报道，一批来自上海零度可乐原液中含有“对羟基苯甲酸甲酯”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.
虽未最终证实，但暂时认为与乳腺癌的发病有关。诸多日用品里都能见到对羟基苯甲酸酯类-化妆品，面霜及任何护肤品。
It hasn't been proven definitively, but has been tentatively linked to breast cancer. You'll notice parabens in a lot of products — makeup, lotions and any body products.
以对羟基苯甲酸甲酯、1，4丁二醇为主要原料，经熔融酯交换合成介晶基元双-对羟基苯甲酸丁二醇酯（BBHB）；
Bis(p-hydroxybenzonic acid butanediolate)(BBHB)as mesogenic unit was prepared with methyl p-hydroxybenzoate, 1,4-butanediol and catalyst by melting transesterification.
以正辛醇为原料，合成1-溴辛烷，并将1-溴辛烷与对羟基苯甲酸甲酯反应，然后水解，得到了4 -辛氧基苯甲酸。
1-bromooctane was manufactured by n -octanol as material, and reacted with methyl o -hydroxybenzoate, the 4-octanoxy benzoic acid was obtained.
两岁幼儿吸收（防腐剂）对羟基苯甲酸丙酯和对羟基苯甲酸丁酯类防腐剂的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.
上述条件下，对羟基苯甲酸乙酯的产率为87.5%，对羟基苯甲酸丙酯的产率为89.2%，对羟基苯甲酸丁酯的产率为91.1%。
Under these conditions, yields of 87.5%, 89.2%and 91.1%can be reached for the ethyl ester, propyl ester, and butyl ester, respectively.
上述条件下，对羟基苯甲酸乙酯的产率为87.5%，对羟基苯甲酸丙酯的产率为89.2%，对羟基苯甲酸丁酯的产率为91.1%。
Under these conditions, yields of 87.5%, 89.2%and 91.1%can be reached for the ethyl ester, propyl est...
研究了以蔗糖酯及壳聚糖为涂膜剂，并配合防腐剂对羟基苯甲酸丙酯对青椒进行涂膜保鲜处理，观察青椒在贮藏期间亚硝酸盐含量的变化。
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.
去离子水、印度醋栗、红石榴提取液、茄红素、丙烯酸共聚物、酵母提取液、无花果精华、对羟基苯甲酸甲酯、咪唑烷基脲、丙二醇、甘油。
Ingredients: Deionized water, amalaki, pomegranate extract, lycopene, acrylic acid copolymer, yeast extract, fig essence, Methyl Paraben, imidazolidinyl urea, propylene glycol and glycerol.
介绍了七种合成间羟基苯甲酸（1）的方法，并对这些方法的优缺点进行了讨论。
Seven methods of synthesis ofm-hydroxybenzoic acid(1) were reviewed and their advantages and disadvantages were also discussed in this paper.
以嫁接在云南黑籽南瓜砧木上的伽师甜瓜为试材，探讨香草酸、香草醛和对-羟基苯甲酸为代表的酚酸类物质对嫁接伽师瓜植株和保护酶活性的影响。
The phenolic acids used were vanillic acid, vanillin and P-hydroxy benzoic acids for studying the effects of phenolic acids on the growth and activities of protective enzymes of muskmelon.
研究了杉木自毒物质邻羟基苯甲酸胁迫对2个杉木优良无性系组培苗（分别记为01号、02号）叶片的膜质过氧化及渗透物质的化感效应。
The allelopathic effects of salicylic acid stress on membrane lipid peroxidation and osmosis-regulating substances in two well performing Chinese fir clones(referred to as 01 and 02) were studies.
研究了杉木自毒物质邻羟基苯甲酸胁迫对2个杉木优良无性系组培苗（分别记为01号、02号）叶片的膜质过氧化及渗透物质的化感效应。
The allelopathic effects of salicylic acid stress on membrane lipid peroxidation and osmosis-regulating substances in two well performing Chinese fir clones(referred to as 01 and 02) were studies.
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