The p-fluorophenoxy propionic acid was synthesized by p-fluorophenol and 3-chloropropanoic acid as row materials and transfer catalyzed by TEBA.

以对氟苯酚和3-氯丙始原料,用苄基三乙基氯铵作催剂,经过相转移催合成对氟苯氧丙。

In addition, some organic acids with the bad breath, such as butyric acid and propionic acid, and indole, methyl indole compounds and cadaverine.

，一些有机也与口臭有关，如丁和丙，以及吲哚、甲基吲哚和尸胺等合物。