Pesticides are substances intended for preventing, destroying or controlling any pest. The most common use of pesticides is in agriculture. Pesticides are mostly classified by target organism (e.g. Herbicides, Insecticides, Fungicides, etc.) and chemical structure (e.g. organic, inorganic, synthetic or biological). Many of the pesticides significantly alter the ecosystem (toxic to human or concentrated in food chain). Chemodex offers a broad panel of insecticides, herbicides, fungicides and growth factor inhibitor substances (not Standards) as reference compounds to study the mode of action of these compounds.