1. A chlorine-containing thermoplastic containing at least one nitrogen-containing organic compound of the formula I see diagramm : EP0174412,P13,F1 in which m is the number 0, 1 or 2, n is the number 1, 2 or 3, p is the number 1 or 2, Y is -F, -Cl, -Br, -I, -CH3 or...
An alkaloid has been defined by Pelletier as: ‘a cyclic organic compound containing nitrogen in a negative oxidation state which is of limited distribution among living organisms.’ Most alkaloids have basic properties connected with a heterocyclic tertiary nitrogen. Notable exceptions are colchicine, ...
10 Organic compound D contains the elements carbon, hydrogen, oxygen and nitrogen only.(a) A sample of D was burned completely in the apparatus shown.Solid X absorbed the water formed in the combustion.Solid Y absorbed the carbon dioxide.compound D dry oxygen suction个heat solid X solid Y(...
5) organic nitrogen compound 有机氮化合物6) organic compound containing oxygen 含氧有机化合物 例句>> 补充资料:氮同位素标记有机化合物 分子式:CAS号:性质: 以15NH3,15NH2CN,15NH2C1为原料合成15N标记的氨基酸、嘌呤、嘧啶、卟啉、季铵碱标记物。15NH2CN与Sb2S和H2S反应合成硫脲-15N。尿素-15N,硫脲-...
iConnect Nitrogen Phosphorous Detector (NPD)Selectivity and sensitivity to the determination of organic compounds containing nitrogen or phosphorus iConnect Thermal Conductivity Detector (TCD)Universal detector responds sensitively to both organic and inorganic co...
A simple method has been built up for calculating the bond dissociation energies of organic compounds containing nitrogen or sulfur by use of group electronegativity. 建立了用基团电负性计算含氮含硫有机物的键裂能的简单方法。2. This paper has been built up a simple method by use of group electr...
compound n.[C] 1. 混合物;化合物;复合物 2. 复合字,复合句 adj. 1. 合成的,复合的,混合的 2.【语】复合的,合成的 v. [T] 1. 增加,加重,使恶化 2. 使 nitrogen burst 氮爆搅动 nitrogen hardening 渗氮硬化 nitrogen lag 氮迟滞 amino nitrogen 【医】 氨基氮 nitrogen absorption 氮吸附 ...
3.2.1 Organic and total nitrogen Determining organic nitrogen entails digesting the sample in order to convert nitrogen-containing organic compounds into inorganic forms of this element. The digest can be used to determine total nitrogen directly and organic nitrogen by difference. Sample digestion is ...
1.A nitrogen-containing organic compound having a 7-oxanorbornane-2-carboxylic ester structure, represented by the general formula (1):wherein R1is hydrogen or a straight, branched or cyclic C1-C10alkyl group; R2and R3are each independently a C1-C20alkyl group, C6-C20aryl group or C7-C20...
The present invention describes novel nitrogen-containing organic compounds obtained by reacting a compound X of substituted pyridine type comprising at least one ketone function wi