Ethoxyquin was originally registered as a pesticide. Then Monsanto thought it would be a great idea to use it as a food preservative. I completely get that
http://www.epa.gov/oppsrrd1/reregistration/REDs/factsheets/0003fact.pdf
http://www.epa.gov/oppsrrd1/reregistration/REDs/factsheets/0003fact.pdf