IUPAC Name: 2,2-dichloroethenyl dimethyl phosphate

Source: Used as an indoor/outdoor pesticide to control insect populations.

Water Treatment: https://tdb.epa.gov/tdb/contaminant?id=658891153

Summary: Dichlorvos is an organophosphate used as a pesticide to control insects. It is usually not directly used on crops. It appears as a colorless to pale yellow liquid at room temperature. It has a solubility of 8,000 mg/L in water at 20 C and has a density of 1.415 g/mL at 25 C. Upon decomposition produces toxic fumes including phosphoric acid, carbon and phosphoric oxides, and hydrogen chloride gas. It is expected to have moderate to high mobility in soil and will degrade naturally. Other applications of dichlorvos include parasite removal medication and collars for animals. It is also found as a degradation product of insecticides such as trichlorfon. It is classified by the EPA as a Hazardous Air Pollutant (HAPs). It has been banned from the EU and is listed under Restricted Use in the United States.

GHS Hazard Statement: H300, H301, H310, H311, H315, H316, H317, H320, H330, H331, H351, H370, H372, H373, H400, GHS06, GHs07, GHS08, GHS09