您要查找的是不是：
- OBJECTIVE To study the synthetic method of 4,4-bis(diethoxyphosphoryl) butanoic acid. 目的探讨4,4-二(二乙氧膦酰)-丁酸的合成研究。
- The major chemical constitutes in essential oil were ester and alcoho.The major chemical compound was butanoic acid ethyl ester (86.89%). 其主要成分是酯类、醇类物质，其中丁酸乙酯的相对含量高达86.;89%25。
- The major chemical constitutes in essential oil were ester and alcoho.The major chemical compound was butanoic acid ethyl ester((86.89%)). 其主要成分是酯类、醇类物质;其中丁酸乙酯的相对含量高达86.;89%25。
- The new synthetic compound of 2,2 dimethyl butanoic acid has been separated and analyzed by GC MS.2,2 dimethyl butanoic acid has been identified in the compound. 采用气相色谱-质谱联用法（GC-MS）首次分离鉴定了新合成的2，2-二甲基丁酸合成液，共分离出6个组分，经质谱裂解机理研究，鉴定出里面确含2，2-二甲基丁酸。
- Two haptens of MCPA(M), 6-[((2-methyl-4-chlor) phenoxy aceto) amino] hexanoic acid (MC) and 4-[((2-methyl-4-chlor) phenoxy aceto) amino]butanoic acid(MB) were synthesized with MCPA and amino-hexanoic acid or amino-butanoic acid. 以除草剂2甲4氯(MCPA,简写为M)、氯化亚砜、氨基己酸和氨基丁酸等为起始原料,经两步化学反应分别合成了两种MCPA半抗原:6-(2-甲基-4-氯苯氧乙酰基)氨基己酸(MC)和4-(2-甲基-4-氯苯氧乙酰基)氨基丁酸(MB)。
- Among the more common acids are the butanoic acids, the pentanoic acids, the heptanoic acids and the octanoic acids. 丁酸、戊酸、庚酸和辛酸是更为常用的酸。
- Butanoic acid, 3-methyl-, cyclohexyl ester; 名称 3-甲基丁酸环己基酯;
- Butanoic acid, calcium salt;Calcium butyrate; 产品名称： 丁酸钙盐;
- Butanoic acid, 3-oxo-, ethyl ester; 3-氧代丁酸乙基酯;
- Butanoic acid, 2-methylpropyl ester; 丁酸-2-甲基丙酯;
- Butanoic acid, 1-cyclohexylethyl ester; 名称 丁酸-1-环己基乙酯;
- Butanoic acid (methylthio)methyl ester; 名称 丁酸二甲硫醚酯;
- Keywords butanoic acid primary amine N1923 extraction; 关键词正丁酸;萃取;伯胺N1923;
- calcium salt of 2-hydroxy-4-(methyhhio) butanoic acid weight gain 相对增重率
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- I am doing an experiment of neutralizing acid. 我在做一个中和酸的实验。
- Can Jones beat Smith? That's the acid test. 琼斯能击败史密斯吗？那是个严峻的考验。
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯
