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benzoate n.【化學】苯(甲)酸鹽[酯]。

benzocaine

A super acylation catalyst , 4 - dimethylamino pyridine ( dmap ) , was prepared and used to synthesize cholesteryl ester compounds . four kinds of cholesteryl ester compounds such as cholesteryl p - alkoxyl benzoate , cholesteryl dicarboxylate , cholesteryl lumequeic ester and coattail - like cholesteryl ester were synthesized by acylation method and super acylation catalyst method . chemical structures and liquid crystal behaviors of the synthesized samples have been characterized by using element analysis , ftir , dsc and polarized microscopy with a hot stage 本文合成了高效酰化催化劑4 -二甲基氨基吡啶( 4 - dimethylaminopyridine , dmap ) ,采用酰氯化法和高效酰化催化劑法分別合成了對烷氧基苯甲酸膽甾醇酯、對稱脂族二羧酸膽甾醇酯、烯酸膽甾醇酯及燕尾型膽甾醇酯四類膽甾醇酯衍生物,并進行了化學結構和液晶性能的表征。

Distilled water , aloe vera gel , sunflower oil , shea butter , octoctionoxate methoxy cinnamate derived from cinnamon , octyl salicylate derived from white willow bark , titanium dioxide , vegetable emulsifier , zinc oxide , vitamin e , all natural preservatives consisting of glucono delta - lactone commonly found in honey , fruit juices and wine , sodium benzoate found naturally in cranberries , prunes , greengage plums , cinnamon , ripe cloves , and apples . and calcium gluconate a soluble calcium salt 純蒸餾水蘆薈太陽花油雪亞脂防曬成份包括肉桂精華白楊樹皮提取液二氧化鈦氧化鋅植物提煉而成的乳化劑維他命e全天然防腐物質包括從蜜糖果汁等煉的糖質從曼越橘肉桂梅子蘋果等提取的安息香酸鈉及可溶化的鈣鹽等。

Established in 1991 , mainly produce human choroinic gonadotrophin ( hcg ) , human menopausal gonadotrophin ( hmg ) , urofollitropin ( fsh ) , heparin sodium , chondroitin sulfate , sodium benzoate , polyaluminchloride ( water clarified reagent ) etc . , we are the largest and the only enterprise which produce urinary items from crude to the injectable 成立于1991年,主要生產絨促性素、尿促性素、卵胞激素、尿激酶、肝素鈉、硫酸軟骨素、苯甲酸鈉、聚合氯化鋁凈水劑等,是中國最大的唯一的從尿液做到原料藥的生產廠家。

The methods for synthesizing p - hydroxyl ethyl benzoate catalyzed by sulfuric acid , p - toluene sulfonic acid , amino sulfonic acid , strongly acidic cationic exchange resin , ferric chloride hexahydrate , aluminum chloride hexahydrate , stannic chloride pentahydrate , copper sulfate , titanium sulfate , rare earth metal oxide , sodium bisulfate monohydrate , solid super acid and heteropoly acid and so on are reviewed 摘要評述了硫酸、對甲苯磺酸、氨基磺酸、強酸性陽離子交換樹脂、六水合三氯化鐵、六水合三氯化鋁、五水四氯化錫、硫酸銅、硫酸鈦、稀土金屬氧化物、一水硫酸氫鈉、固體超強酸、雜多酸等催化劑催化合成對羥基苯甲酸乙酯的方法。

Was studied by ultraviolet absorption spectral , fluorescence spectral , and fourier transform infrared ft - ir spectral methods . with the addition of benzoate , the uv absorption peak of bsa at 210nm decreased gradually and moved to longer wavelengths . ft - ir measurement indicated the decrease of the percentage of 苯甲酸鈉的加入使得白蛋白紫外吸收光譜中210nm處的峰值逐漸降低,峰位紅移。傅里葉紅外光譜的測量結果顯示隨著苯甲酸鈉的加入白蛋白中

Helix of bsa . the fluorescence of tryptoph an residue in bsa was quenched by benzoate . the experimental results showed that benzoate caused the change of conformation of bsa and 10mg benzoate in 1mg bsa damaged bsa 白蛋白中色氨酸殘基的熒光被苯甲酸鈉淬滅。以上光譜結果表明苯甲酸鈉引起了bsa構象的變化, 1mg的bsa中加入10mg苯甲酸鈉,就會造成bsa損傷。

In this paper , we reported the synthesis of three supramolecular complexes between - cyclodextrin and anisole , ethyl benzoate , m - cresol , respectively , which are identified by means of 1hnmr technique 摘要以-環糊精與苯甲酸乙酯、苯甲醚和間甲酚在水相中通過范德華力發生包合反應形成了主客體超分子絡合物,并用核磁共振氫譜對絡合物進行了表征。

Method for chemical analysis of manganin and novokostant resistance alloy the edta titrimetric method for the determination of aluminum content after separation with ammonium benzoate 錳銅和新康銅電阻合金化學分析方法苯甲酸銨分離- edta滴定法測量鋁量

The preservatives used are citric acid to reduce the ph level , potassium sorbate to stop mould and sodium benzoate as an antimicrobial agent 使用的防腐劑是檸檬酸,目的是為了降低ph值和山梨酸鉀,以便防止霉變。另一種是苯甲酸鈉,它是一種殺菌劑。

Sodium benzoate , which derives from benzoic acid , has been used for years by the carbonated drinks industry to prevent mold from developing in soft drinks 苯甲酸鈉從苯甲酸提取出來,為了防止霉菌在軟飲料中繁殖,已被應用于碳酸飲料工業多年。

The preservatives used are citric acid to reduce the ph level , potassium sorbate to stop mould and sodium benzoate as an antimicrobial agent 以檸檬酸(降ph值) 、山梨酸鉀(防霉變)和苯甲酸鈉(抗菌劑)作為防腐劑。

Sodium benzoate has the ability to switch off vital parts of a person ' s dna , according to research from a british university 依據一所英國大學的研究發現:苯甲酸鈉具有使一個人dna中關鍵部分停止工作的能力。

Benzoate is used as food preservative widely . the interaction of bovine serum albumin with benzoate in vitro 通過紫外光譜熒光光譜傅里葉紅外光譜的方法研究了苯甲酸鈉與牛血清白蛋白bsa的體外相互作用。

Effective medical treatment for scabies include anti - scabies agents ( e . g . benzyl benzoate emulsion ) and drugs to control itchiness 疥瘡的藥物治療,包括外用殺疥藥(疥瘡乳劑)及止痕藥。

Effective medical treatment for scabies include anti - scabies agents e . g . benzyl benzoate emulsion and drugs to control itchiness 疥瘡的藥物治療,包括外用殺疥藥疥瘡乳劑及止痕藥。

Research on benzoate - like compounds degraded by microorganisms in the north coast wetland of liaodong bay 遼東灣北岸濱海濕地降解苯甲酸類化合物的微生物研究

The crude , wet benzoate ( 118 grams ) was dissolved with reflux in 1 , 400 ml methanol 將粗制、濕的苯甲酸酯( 118克)回流著溶于1400毫升甲醇中。

Sodium benzoate bp 苯甲酸鈉

Lithium benzoate , anhydrous 氫化鋁鋰