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- tetramethyl pyridine 四甲基吡啶
- Butadiene vinyl pyridine rubber latex. 丁二烯、乙烯基吡啶经乳液共聚制得的胶乳。
- Pyridine is a colorless chemical liquid. 吡啶是一种无色的化学液体。
- 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 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 ;
- The fixation of CO2 carried out by these autotrophs, in addition to ATP, requires reduced pyridine nucleotide. 除ATP外,由这些自养生物进行的CO2固定,需要还原的吡啶核苷酸。
- 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 pyridine was chemisorbed at both Lewis and Bronsted sites on the glass surface. 在玻璃表面上,吡定都是化学地吸收在路易斯和布朗斯特德位置上的。
- 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。
- Heterocylic aromatics such as pyridine and pyrimidines also give a somewhat similar set of bands in the 1600 cm region. 杂环芳香族结构类如吡啶、嘧啶类化合物在1600厘米-1(6.;25微米)区域也有相似的一组谱带。
- A pyridine derivative, C18H11NO3, occurring especially in cereals, yeast, liver, and fish and serving as a coenzyme in amino acid synthesis. 吡哆醇吡啶的衍生物,c18h11no3,尤其出现于谷类,酵母,肝脏和鳞中,作为氨基酸合成作用中的辅酶
- The synthetic methods of glutaraldehyde from pyridine, pyrane, 1,5-pentadiol, or cyclopentene, etc., are introduced. 介绍了戊二醛的合成方法,包括吡啶法、吡喃法、1,5-戊二醇法、环戊烯氧化法等。
- A semi-empirical LCAO-MO-AM 1 calculation is performed for some substituted pyridine N-oxide. 在LCAO-MO-AM1水平上计算了取代氧化吡啶的气相质子化能.
- 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。
- The typical K-F reagent has disadvantage of high poisonousness and pyridine malodor. 经典K-F试剂缺点是毒性大,且具有吡啶的恶臭。
- 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。
- The influence of chloride ions on SERS of PABA (p-aminobenzioc acid) and pyridine in Ag sol were discussed. 讨论氯离子对银胶体系中对氨基苯甲酸(PABA)和吡啶(pyr)的表面增强喇曼散射(SERS)效应的影响。
- 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。
- We studied the recovery of the crude pyridine from coking plant waste water using the direct acid-cleaning method. 对氨水萃取脱酚溶剂(粗苯)直接酸洗回收粗吡啶进行了研究。
- 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。