丁烷的

Among the more common acids are the butanoic acids, the pentanoic acids, the heptanoic acids and the octanoic acids. 丁酸、戊酸、庚酸和辛酸是更為常用的酸。

OBJECTIVE To study the synthetic method of 4,4-bis(diethoxyphosphoryl) butanoic acid. 目的探討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%). 其主要成分是酯類、醇類物質(zhì)，其中丁酸乙酯的相對含量高達86.

The major chemical constitutes in essential oil were ester and alcoho.The major chemical compound was butanoic acid ethyl ester((86.89%)). 其主要成分是酯類、醇類物質(zhì)

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. 采用氣相色譜-質(zhì)譜聯(lián)用法（GC-MS）首次分離鑒定了新合成的2，2-二甲基丁酸合成液，共分離出6個組分，經(jīng)質(zhì)譜裂解機理研究，鑒定出里面確含2，2-二甲基丁酸。