戊酸

Experimental agents: 5% lidocaine hydrochloride;20% ethyl carbamate; aether;pure oxgen and nitrogen for medical purpose; 4% paraform;0.1M PBS; TTC;Bcl-2 andBax immunohistochemistry; SABC kit;~(99m)TcO_4~-, Annenxin V, Sn~(2+)-Tricine Kit andHYNIC-Annexin V Kit.

TTC，2.5％戊二醛，1％锇酸，Epon812；兔抗兔Bcl-2和Bax多克隆抗体、SABC试剂盒、TUNEL试剂盒和DAB染色液；~(99m)TcO_4~-，Annenxin V，Sn~(2+)-Tricine Kit和HYNIC-Annexin V Kit。

Adopting intumescent flame retardant that uses ammonium phosphate as acid source, melamine as gas source, pentaerythrite as carbon source to treat cotton fabric.

采用聚磷酸按为酸源、三聚氰胺为气源、季戊四醇为碳源的膨胀型阻燃剂对棉织物进行整理。

Our main product are as follows: soda ash, phosphoric acid, selenium powder, pentaerythritol, phthalic anhydride, maleic anhydride, tartaric acid, glycerine, sodium acetate, lauric acid Lane Company by virtue of modern mode of operation, strict management system, excellent quality, reasonable price and professional service system, would like to warmly at home and abroad to cooperate sincerely with old and new customers, create brilliant!

我司主打产品如下：纯碱，磷酸，硒粉，季戊四醇，苯酐，顺酐，酒石酸，甘油，醋酸钠，月桂酸莱恩公司凭借现代化的运作模式、严谨的管理体制、优良的质量、合理的价格、专业化的服务体系，愿热忱与国内外新老客户精诚合作，共创辉煌！

A new method for the synthesis of 1 methyl 3 propyl pyrazol e 5 carboxlic acid from 2 pentanone and diethyl oxalate is reported.

以 2 -戊酮和草酸二乙酯为起始原料，经缩合、与甲基肼环合、水解等三个步骤合成了 1 -甲基-3-丙基吡唑-5 -羧酸。

The tribological characteristics of the esterified Castor oil is better than those of Castor oil, Di-iso-butyl sebacate, Pentaerythritol esters , mineral oil 150#, bean oil, Rapeseed oil. As part of 12-hydroxyl of Castor oil acid has transformed into ester so that the isomerization degree of esterified castor oil increases with the branching carbon chain extending.

四球机测定酯化蓖麻油的摩擦性能优良；优于蓖麻油、癸二酸二异辛酯、季戊四醇酯、矿物油VG150〓、豆油和菜籽油；酯化蓖麻油的流变性能改进的机理认为是部分12-OH酯化后，直链的植物油结构异构化。

Using silicotungstic acid as catalyst with the catalyst supported on active carbon,2-methyl-2-ethyl-acetic-1,3-oxathiolane(targeted compound I,an aroma compound with apple flavor )was synthesized by the reaction of ethyl aceto-acetate and 2-mercapto-ethanol.

以活性炭固载硅钨酸作为催化剂，用乙酰乙酸乙酯与巯基乙醇缩和合成了具有浓郁苹果香气的香料化合物2-甲基-2-乙酸乙酯基-1，3-氧硫杂环戊烷。

Tetraphenyl-1,2-ethanediol and a S-S bond type thermal iniferter, i.e., tetraethyl thiuram disulfide were used to consist of new reverse ATRP initiation systems TPED/FeCl3/PPh3 and TD/FeCl3/PPh3, respectively.

这比文献(Sawamoto et al， 1998)报道的由2-氯-2，4，4-三甲基戊二酸二甲酯(dimethyl 2-chloro-2，4，4-trimethylglutarate)/RuCl2(PPh3)/Al引发体系引发MMA聚合的方法制备α-H，ω-Cl-PMMA要简便。

This reflected that EMP and HMP pathways and the tricarboxylic acid cycle were very important to the bioreduction.

表明糖酵解途径、磷酸戊糖途径和三羧酸循环的顺利进行对于面包酵母在有机介质中催化4-氯乙酰乙酸乙酯还原反应都是十分重要的。

Results The mixing, loading and storing processes of the construction, might generate lots of occupational hazards, including toluene, dimethylbenzene, trimethylbenzene, isopropanol, butyl alcohol, propanol, methyl methacrylate, butyl acetate, methyl isobutyl ketone, methyl ethyl ketone, acetic ether, nitro-cotton, n-hexane, n-heptane, carbinol, ethanol, ethyl propionate, diisobutyl ketone, glycol ether, isoamyl acetate, 2,4-toluene diisocyanate, isophorone, noise, power frequency electric fields.

结果 该项目在混兑生产和装卸、仓储过程中，可能产生的职业病危害因素主要有甲苯、二甲苯、三甲苯、异丙醇、丁醇、丙醇、甲基丙烯酸甲酯、乙酸丁酯、甲基异丁基甲酮、丁酮、乙酸乙酯、硝化棉、正己烷、正庚烷、甲醇、乙醇、乙酸丙酯、二异丁基甲酮、乙二醇乙醚、乙酸异戊酯、2，4甲苯二异氰酸酯、异佛尔酮、噪声、工频电场。

Hydroesterification of tert-butyl alcohol with ethanol catalyzed by transition metal triphenylphosphine complexes were investigated in room temperature ionic liquids as reaction medium at 100-140℃ and 3-6MPa of CO.

首次在超强酸氯铝酸离子液体中实现了饱和烷烃的羰化反应。发现2，2，4-三甲基戊烷可直接与CO反应，产物叔丁基异丁基酮，叔丁基异丁烯基酮和3，3，5-三甲基环己酮。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。