Tetrachlorophthalic anhydride (CED0019408)

Tetrachlorophthalic anhydride (C8Cl4O3) is a chemical compound with an average molecular weight of 285.89 g/mol. Tetrachlorophthalic anhydride belongs to the benzofuranones, a subclass of benzofurans within the organic compounds. In industrial applications, the compound is used in polyurethane plastics. The substance has been identified in or released from 35 recorded sources. These sources span multiple sectors, including building and construction materials such as ceilings, fencing, and waterproofing sprays. It is found in household cleaning and consumer products, specifically soap detergents and perfumes within detergents and soaps, as well as in tobacco smoke filters. Within the electrical and electronic equipment sector, it is associated with antennas, amplifiers, electric switches, coils, and conductors or conductive bodies characterised by the conductive materials. Environmental presence is noted in aquatic systems and sediments, including freshwater, seawater, surface water, and groundwater. It is also detected in wastewater, sanitation, and biosolids, specifically in unspecified wastewater, mine wastewater, industrial wastewater, and wastewater treatment effluent. Additionally, the compound is found in drinking water and water supply sources, including tap water, bottled water, and desalinated water. Recorded exposure routes for the compound include oral, inhalation, and touch.