3d image of lewisite skeletal formula

lewisite 2-chloroethenylarsonous dichloride 2-chloroethenyldichloroarsine 2-chlorovinyldichloroarsine chlorovinylarsine gas organoarsenic effect exposure smell victim symptom ww1 antidote vesicant lung irritant mask respirator 3d chemistry chemical organic molecule molecular structural structure formula compound component synthesis mechanism poison toxic toxicity bane poisoning danger hazard carcinogen cancer attack warfare agents treatment weapon