ABSTRACT

Molecular formula: C14H9Cl5 Synonyms and trade names: Dichlorodiphenyltrichloroethane IUPAC name: 1,1,1′-Trichloro-2,2-bis(4-chlorophenyl) ethane The technical p,p′-DDT is a waxy solid but in its pure form appears as colourless crystals. It is a mixture of three isomers, namely, p,p′-DDT isomer (about ca. 85%); o,p′-DDT; and o,o′-DDT (in smaller levels). DDT is very soluble in cyclohexanone, dioxane, benzene, xylene, trichloroethylene, dichloromethane, acetone, chloroform, diethyl ether, ethanol, and methanol. The U.S. Environmental Protection Agency (U.S. EPA) grouped DDT as a restricted use pesticide (RUP). DDT is often contaminated with DDE (1,1-dichloro-2,2bis(chlorophenyl) ethylene) and DDD (1,1-dichloro-2,2-bis(p-chlorophenyl) ethane).