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- tetramethyl benzoquinone 四甲基苯醌
- Primary by-products range from benzoquinone to maleic acid and oxalic acid. 中间产物主要为苯醌、马来酸、草酸等,
- Their intermediates included benzoquinone,adjacent diphenol and hydroquinone. 这两个反应的中间产物都是苯醌、邻苯二酚和对苯二酚;
- OBJECTIVE To study the protective effect of tetramethyl pyrazine (TMP) on cyclophosphamide injured mice. 目的:考察川芎嗪对小鼠环磷酰胺损伤的保护作用。
- The in-situ formed Pd(0) was efficiently converted to the catalytically active Pd(II) species by benzoquinone in HOAc. 这种情形下产生的钯(0)在醋酸中能够被苯醌高效地修饰成有催化作用活性的钯(II)类物质。
- The results showed that the yield of 1?1 dichlor 1?1?2?2? tetramethyl disilane was rested on the amount of Grignard agent. 结果发现 ,格氏试剂的加入量决定了 1 1 -二氯- 1 2 2 2 -四甲基二硅烷的产率 ;
- Octane and para tetramethyl benzene were served as the solvent for dissolving sample and internal standard,respectively. 正辛烷和对四甲基苯分别用作样品的溶剂和内标物,采用内标法定量。
- The 2, 2, 6, 6 - tetramethyl - 4 - piperidinol (piperidinol) was synthssized from catalytic hydrogenation of 2, 2, 6, 6 - tetramethyl - 4 - piperidone. 制备了由2,2,6,6-四甲基-4-哌啶酮催化氢化合成受阻胺类光稳定剂中间体2,2,6,6-四甲基-4-哌啶醇。
- In this work,the 4-methoxyphenol was prepared from hydroquinone,methanol which were catalyzed by benzoquinone and concentrated sulphuric acid.The yield of 4-methoxyphenol was 80%. 对苯二酚和甲醇在浓硫酸和对苯醌催化下,制得4-甲氧基酚,产率为80%25。
- Methods Tetramethyl rhodamine(TMR) or horseradish peroxidase(HRP)retrograde tracing and biotinylated dextran amine(BDA) anterograde tracing techniques were used. 方法四甲基罗达明(TMR)或辣根过氧化物酶(HRP)逆行追踪和生物素葡聚糖胺(BDA)顺行追踪技术。
- Hexagonal mesoporous silica were synthesized in acidic medium by using cetyltrimethylammonium bromide (C16TMABr) as template and tetramethyl orthoslicate (TEOS) as silica source. 本文以十六烷基三甲基溴化铵为模板剂,正硅酸乙酯为硅源,在酸性条件下合成了纯硅六方介孔分子筛。
- A analysis method of the bis(2,2,6,6 _ tetramethyl _ 4 _ piperidyl)maleate (BPM) in synthetic reaction solution by ion suppression chromatography is discussed. 建立了用离子抑制色谱法分析二(2,2,6,6-四甲基-4-哌啶基)马来酸酯合成反应液的方法。
- Product Name: Tetramethoxysilane Other Name: Methyl orthosilicate, Tetramethyl silicate,TMOS Chemical structural formula: Si(OCH3)4 Property: Colorless transparent liquid. 用途: 产品名称:四甲氧基硅烷 别名:硅酸甲酯,硅酸四甲酯 分子结构式: Si(OCH3)4 性状:无色透明液体。
- The two-step process involving gas oxidation of phenol to benzoquinone with complex metal ions catalysts and reduction of benzoquinone to hydroquinone with iron powder was studied. 以苯酚为原料,复合金属离子为催化剂,研究用气相氧化合成苯醌,用铁粉还原苯醌制对苯二酚的两步法工艺,考察了氧化过程中的工艺条件对反应的影响。
- It means that 1,4-benzoquinone did damnify the ct-DNA,as is one of the ways by which benzene causes cancer,for the reason that benzoquinone is the ultimate metabolic product of benzene. 由于苯醌是苯在体内的代谢终产物,因此认为苯醌对DNA的损伤是苯致癌的途径之一。
- Concentrate hydrosilicone oil, tetramethyl dihydro disiloxane, hexamethyldisiloxane and D4 were used to synthesize the cross linker of low-hydro silicone oil required in experiments. 以高含氢硅油、含氢双封头、六甲基二硅氧烷、D4合成实验所需的交联剂低含氢硅油;
- This paper reports the application of fluorescence anisotropy technique to the (assay) of proteases via a protein substrate labeled with tetramethyl isothiocyanate rhodmine(TMRITC). 建立了一种基于荧光各向异性原理均相测定蛋白酶及其抑制剂的方法。
- Abstract: Hexagonal mesoporous silica were synthesized in acidic medium by using cetyltrimethylammonium bromide(C16TMABr) as template and tetramethyl orthoslicate(TEOS) as silica source. 本文以十六烷基三甲基溴化铵为模板剂,正硅酸乙酯为硅源,在酸性条件下合成了纯硅六方介孔分子筛。
- A Benzoquinone Mediator Modified Glucose Biosensor 苯醌介体修饰的葡萄糖生物传感器
- tetramethyl rhodaine isothiacyanate 四甲基异硫酸罗丹明