US EPA - OPP - Registered Pesticides
Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) Registered Pesticides (Selections)
The FIFRA database contains over 90.000 pesticide products. Direct access to database on a one at a time search basis is at http://ppis.ceris.purdue.edu/
Pharos is not attempting to cover this listing comprehensively at this time - partial list obtained from GoodGuide .csv download.
The site that hosts this list went offline on June 1, 2020. See the archived list: https://web.archive.org/web/20171216013657/http://scorecard.goodguide.com/chemical-groups/one-list.tcl?short_list_name=pest.