Recently we build a new production line of 5337-93-9, which can make the purity of 5337-93-9 to be more than 98.5%+.   What’s 5337-93-9?   It is also called 4mpf,mpf,full name is 4′-methylpropiophenone,which is the important intermediate of 2,4′-dimethyl-3-piperid