How is the chemical substance paraquat formally classified?

Answer

As a bipyridyl herbicide

Paraquat is a bipyridyl herbicide, chemically known as paraquat dichloride. It functions as a quaternary ammonium compound. These substances operate by acting as non-selective contact herbicides, destroying plant tissue upon contact. Its chemical structure is foundational to its ability to undergo the redox cycling that makes it so toxic to animal and human cells.

How is the chemical substance paraquat formally classified?
ToxicityPoisonchemicalparaquat