Phosgene

Does the chemical compound phosgene contain phosphorus atoms?

“‘Poison gas’?” A new one on Lew. But Dr. De Bottle had taken on a somber look. “Phosgene.”

Remote and cold, H-276 is nevertheless of interest due to phosgene gas in its thick chlorine atmosphere. This could indicate primitive chlorine-based life. However, no detailed study has been completed.