phosgene molecule, structural chemical formula, ball-and-stick model, image colorless gas

phosgene colorless gas toxic formaldehyde industrial building block molecule molecular structure chemical formula isolated cocl2 model acyl chlorides nonmetal halides oxychlorides carbon oxohalides pulmonary agents chemistry atom science weapon poison skeletal oxygen atomic hay education biochemistry warfare grass reagent phosgen agent biology research scientific ball structural substance poisonous organic