Quizalofop-P-ethyl is an ethyl 2-{4-[(6-chloroquinoxalin-2-yl)oxy]phenoxy}propanoate that has R configuration. A proherbicide for quizalofop-P, it is used to control annual and perennial grass weeds in a variety of crops, including potatoes, sugar beet, peanuts, cotton and flax. It has a role as a proherbicide and an agrochemical. It is a quinoxaline herbicide and an ethyl 2-{4-[(6-chloroquinoxalin-2-yl)oxy]phenoxy}propanoate. It is functionally related to a quizalofop-P. It is an enantiomer of a (S)-quizalofop-ethyl.