Synonym for dimercaprol ... <chemical> 2,3-dimercapto-1-propanol. An anti-gas warfare agent that is effective against lewisite (dichloro(2-chlorovinyl)arsine). It acts as a chelating agent and is used in the treatment of arsenic, gold, and other heavy metal poisoning. ... Pharmacological action: antidotes, chelating agents. ... Chemical name:... Found on http://www.encyclo.co.uk/local/20973