Dimercaprol – British anti-Lewisite BAL

Dimercaprol – British anti-Lewisite BAL       

Clinical data
Trade names BAL in Oil
Synonyms 2,3-Dimercaptopropanol
British Anti-Lewisite

Medical uses

Dimercaprol has long been the mainstay of chelation therapy for lead or arsenic poisoning, and it remains an essential drug. It is also used as an antidote to the chemical weapon Lewisite.

Wilson’s disease is a genetic disorder in which copper builds up inside the liver and other tissues. Dimercaprol is a copper chelating agent that has been approved by the FDA to treat Wilson’s disease.



Commonly used brand name(s): BAL in Oil.

Other commonly used names are
British Anti-Lewisite and dimercaptopropanol


Dimercaprol (INN) or British anti-Lewisite (abbreviated BAL), is a compound developed by British biochemists at Oxford during World War II.It was developed secretly as an antidote for Lewisite, Used medically in treatment of Arsenic, Mercury, Gold, Lead, Antimony, and other Toxic Metal Poisoning.
Chemical and physical data
Formula C3H8OS2
Molar mass 124.225 g mol−1
Boiling point 393 °C (739 °F) at 2.0 kPa
Density 1.239 g cm−3 g/cm3



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