dimercaptopropanol

Dimercaptopropanol, also known as DMPA or British Anti-Lewisite, is a chemical compound with the formula HSCH2CH2SH. It is a colorless, oily liquid that is soluble in water and organic solvents. The compound is characterized by its two thiol groups (-SH) separated by a propane chain, which gives it its name.

Dimercaptopropanol is primarily used as a chelating agent in the treatment of heavy metal poisoning. Its two thiol groups can bind to heavy metal ions, forming stable complexes that can be excreted from the body. This property makes it effective in treating poisoning by metals such as mercury, lead, and cadmium.

The compound was first synthesized in the early 20th century and has since been widely studied for its medical applications. It is often used in combination with other chelating agents, such as dimercaprol, to enhance its effectiveness.

Dimercaptopropanol is also used in the synthesis of other chemicals, including pesticides and pharmaceuticals. Its ability to form stable complexes with various metal ions makes it a valuable reagent in organic synthesis.

Despite its usefulness, dimercaptopropanol can be toxic if ingested or absorbed through the skin. It should be handled with care and proper safety precautions should be taken when using or storing the compound.