苯基羥乙酸 的英文怎麼說
中文拼音 [běnjīqiǎngyǐsuān]
苯基羥乙酸
英文
phenyl glycollic acid
-
羥 :
名詞[化學] (羥基) hydroxyl (group)
-
酸 :
酸構詞成分。
-
Benzoic acid or methyl para - hydroxybenzoate or
對
羥基苯甲
酸乙酯或
-
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。
-
A mixture of catechin and epicatechin, procyanidin b4, 4 - hydroxy - benzoic acid and ethyl gal - late were purified and identified from grape seed procyanidin extract
得到2種原花青素的單體: ( + ) -兒茶素和( - ) -表兒茶素; 1種原花青素二聚體b4 ; 2種其他酚類物質:對
羥基苯甲
酸及沒食子
酸乙酯。
-
The present work indicates the organic nf membranes and the inorganic nf membranes all have shortages, so develop composite nf membranes that have low cost, mechanically strong and thermally / chemically - resistant, easy to cleanout and good performances is a very important task. in this paper, the preparation of inorganic - organic composite nf membranes were presented. this composite comprise a porous sio2 / al2o3 support substrate, the pore diameters of which ranging from 10 to 15 nm, this inorganic support substrate having a polymer membrane which comprises an polyvinyl alcohol ( pva ) or polyamide ( pa ) densely deposited on at least one of the face surfaces thereof, the structural porosity of such pva and pa membrane ranging from 3 to 5 nm
本論文以開發無機?有機復合納濾膜為出發點,首先在al _ 2o _ 3多孔微濾膜上利用溶膠?凝膠法制備sio _ 2 al _ 2o _ 3無機復合超濾膜作為無機?有機復合納濾膜的
基膜;選用聚
乙烯醇和聚酰胺為表面功能層材料,分別探討了以
羥基丁二
酸和磺
基水楊
酸為混合交聯劑,採用浸塗法制備了聚
乙烯醇sio _ 2 ? al _ 2o _ 3復合納濾膜;以均
苯二甲酰氯、哌嗪和二胺為單體,採用界面聚合法制備了聚酰胺sio _ 2 ? al _ 2o _ 3復合納濾膜,並對影響膜性能的諸多因素進行系統研究。
-
Methyl para - hydroxybenzoate or ethyl pare - hydroxybenzoate or
對
羥基苯甲
酸乙酯或
-
( 2 ) an aminobenthiazole schiff base has been synthesized as a new fluorescence carrier by reacting 2 - aminobenthiazole with p - allyoxybenzoldohyde. the new kind of schiff base can be utilized for preparing an optical sensor, used for determining furazolidone based on the fluorescence quenching. aminobenthiazole schiff base immobilized on a glass plate surface by covalent bonding can circumvent the leakage of the fluorephore from the sensor surface and guarantee a relatively long working lifetime
( 3 )用強熒光
基團2 -氨
基苯並蒽酮與對烯丙氧
基苯甲醛合成了另一種新的schiff堿類化合物,與甲
基丙烯
酸羥乙酯、丙烯酰胺、環
乙二醇二丙烯
酸酯共聚制得光極膜,制備了一種
苯並蒽酮schiff堿光化學傳感器,可用於單質碘的測定。
-
The barnidipine hydrochloride were prepared via cyclocondensation from m - nitrobenzaldehyde, methyl acetoacetate and anmmonium bicarbonate, hydrolysis, esterification with opticaliy ( s ) - n - benzyl - 3 - py - rrolidinol, recrystallisation and salification
摘要研究了以碳
酸氫銨,間硝
基苯甲醛和
乙酰
乙酸甲酯為原料,經縮合、部分水解,再與( s ) - n -芐
基3 -
羥基吡咯烷經酯化、分步重結晶、成鹽得到鹽
酸巴尼地平的工藝路線。
-
Its headquarter is located at xinkailu no. 8, xuanhua district of zhangjiakou city. its main products include ziyun brand civil explosive products series : powdery ammonium nitrate explosive emulsion explosive industrial fuse ; ziyun brand fine chemical products series : glyoxalic acid 5 - 4 - hydroxyphenyl hydantoin p - hydroxyphenylacetic acid p - hydroxyphenylacetamide allantoin daidzein bufexamac ; aaa brand fine chemical products series : ethylamine methanol trimethylacetic acid tert - valeryl chloride ; great wall brand agricultural chemical fertilizer products series : ammonia urea ammonium bicarbonate ; chenguang brand calium carbide chenguang brand acetylene carbon black xuguang brand dissolved acetylene ; and the others as sulphur ammoina liquor oxygen nitrogen, etc.
公司現有主要產品為,紫雲牌民爆產品系列:粉狀硝銨炸藥乳化炸藥工業導火索紫雲牌精細化工產品系列:
乙醛
酸對
羥基苯海因對
羥基苯乙酸對
羥基苯乙酰胺尿囊素大豆甙元丁
苯羥酸三a牌精細化工產品系列:
乙基胺甲醇特戊
酸特戊酰氯長城牌農化產品系列:合成氨尿素碳銨晨光牌電石,
乙炔炭黑旭光牌溶解
乙炔。
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The synthesis technology of various liquid rubbers with different active group terminated, such as hydroxyl - terminated, carboxyl - terminated, isocyanate - terminated, ami - no - terminated, mercaptan - terminated and various main chains like polybutadiene, polyurethane, polystyrene were reviewed with 23 references
摘要綜述了端
羥基、端羧
基、端異氰
酸酯
基、端氨
基、端巰
基等活性端
基,以及聚丁二烯、聚氨酯、聚
苯乙烯等不同主鏈結構的液體橡膠的合成技術。
-
According to the preservatives in food regulations cap. 132bd, permitted antioxidants in specified food include only propyl gallate octyl gallate dodecy gallate, butylated hydroxyanisole, butylated hydroxytoluene and ethoxyquin. tbhq is not specified in the said regulations and it is not a permitted antioxidant in fats and oils in hong kong
食物內防腐劑規例第132bd章規定,獲準添加於指明食物的抗氧化劑只限於丙
基?
酸鹽辛
基?
酸鹽十二烷
基?
酸鹽經丁化作用的
羥基茴香醚經丁化作用的
羥基甲
苯及
乙氧
基奎。
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Hydroxyquinol triacetate was prepared from p - benzoquinone by 1, 4 - addition reaction with acetic anhydride and then 6, 7 - dihydroxy coumarin was synthesized from it by hydrolyze and cyclization in concentrated sulfuric acid. then 6, 7 - dimethoxy coumarin was synthesized by methylating from 6, 7 - dihydroxy coumarin with an overall yield of 74. 4 %. the procedure was practical. its structure was confirmed by ir and 1hnmr
對
苯醌與
乙酸酐經1 , 4 -加成生成1 , 2 , 4 -
苯三酚三
乙酸酯,然後與蘋果
酸反應經水解、環合反應得6 , 7 -二
羥基香豆素,再經甲
基化得到6 , 7 -二甲氧
基香豆素,總收率為74 . 4 % ,整個過程反應條件溫和,操作方便,適合工業生產的要求,對產品結構進行了ir和1hnmr表徵。
-
Syntheses of polyethylene glycol bridged diparahydroxylbenzaldehyde condensed ortho - aminobenzoic acid
多縮
乙二醇橋連二對
羥基苯甲醛縮鄰氨
基苯甲
酸的合成
-
Chemical company located in the garden city of hubei avenue traffic developed, hubei is one of the key enterprises, the main production of medicines, pesticides intermediate, the main product b chloride, chlorine b chloride, phenol de mdma, 2, 3 - amounts jiben formaldehyde, 2, 3 - two chlorobenzene formaldehyde, 3, 5 - two regards formaldehyde, the benyi methadone, the benyisuan
仙桃市金聯化工有限公司位於交通發達的湖北仙桃,是湖北省重點企業之一,主要生產各種醫藥、農藥中間體,主要產品
乙酰氯、氯
乙酰氯、對芐氧
基苯酚、 2 , 3 -二甲
基苯甲醛、 2 , 3 -二氯
苯甲醛、 3 , 5 -二
羥基苯甲醛、聯
苯乙酮、聯
苯乙酸。
-
The primary synthetic methods of 4 - hydroxycoumarin was reviewed starting from phenol, 2 - acetylsalicylic acid, methyl salicylate, and o - hydroxyacetophenone respectively
摘要概述了4 -
羥基香豆素的合成方法,重點介紹了
苯酚法,
乙酰水楊
酸法,水楊
酸甲酯法,鄰
羥基苯乙酮法。
-
Polyglycols for industrial use. determination of hydroxyl number. phthalic anhydride esterification method
工業用聚
乙二醇.
羥基數值的測定.鄰
苯二甲
酸酐酯化法
-
Hydroxy phenyl acetic acid
羥基苯乙酸
-
Manufacturer of pharmaceutical intermediates and fine chemicals in china. products include a range of aromatic amines, as well as intermediates for specific apis
-主要生產對硝
基苯甲
酸, 3 -戊酮, dl -對
羥基苯甘氨
酸, dl -對
羥基苯海因,
乙醛
酸產品。
-
Study of 4 - hydroxyphenylacetic acid synthsis from glyoxalic acid
乙醛
酸合成對
羥基苯乙酸的研究
-
Methyl para - hydroxybenzoate, sodium salt
對
羥基苯甲
酸乙酯,
-
Standard test method for determination of butylated hydroxy toluene in polymers of ethylene and ethylene - vinyl acetate copolymers by gas chromatography
用氣相色譜法測定乙烯和乙烯-乙烯基醋酸酯共聚物的聚合物中丁酸化羥基甲苯的標準試驗方法