Intermediates yog cov khoom tseem ceeb uas tsim thaum lub sij hawm chemical synthesis. Lawv nyob nruab nrab ntawm cov khoom siv raw thiab cov khoom kawg, tsim ib qho kev sib txuas tsis tseem ceeb hauv cov saw hlau hluavtaws.
Intermediates ua lub luag haujlwm tseem ceeb hauv ntau qhov chaw lag luam, suav nrog kev tsim tshuaj lom neeg, tshuaj, thiab tshuaj tua kab. Lawv feem ntau muaj cov qauv tshuaj thiab cov khoom tshwj xeeb, ua rau lawv tuaj yeem koom nrog kev cuam tshuam thiab tsim cov khoom lag luam.