Below is the structure of a war gas developed in 1917. It is poisonous because the arsenic can bind with thiol groups on enzymes and thereby inactivate the enzymes. (One thing you do not want to happen in your body is for your enzymes to not work!!!!) During WWII, the Allies were afraid that the enemy would use this war gas and thus an antidote was developed. The antidote is 2,3-dimercapto-1-propanol. Draw the skeletal structure of the species that results from the antidote “chelating” the poison. The other product is HCl (2 equivalents of HCl).