Trichlorophenoxiacetic acid(hapten) was synthesized from 2,4,6-trichlorophenol(TCP) and chloroactic acid.

• 以环境荷尔蒙类物质2,4,6-三氯酚(TCP),氯乙酸为起始原料,经2步反应合成了2,4,6-三氯苯氧乙酸(1)。