di·mer·cap·rol 
(dī′mər-kăprôl, -rōl)
(dī′mər-kăprôl, -rōl)n.
A colorless oily viscous liquid, C3H8OS2, used as an antidote for poisoning caused by lewisite, organic arsenic compounds, and heavy metals including mercury and gold. Also called British anti-lewisite.
[DI-1 + MERCAP(TAN) + (P)R(OPANE) + -OL(E).]