[{"from": "human", "value": "Describe this molecule. [P][S][P][S][P][Branch1][Ring2][S][Ring1][=Branch1][S][P][=Branch1][C][=S][Branch1][Ring2][S][Ring1][#Branch2][S][Ring1][=Branch2]"}, {"from": "gpt", "value": "The molecule appears as light-yellow crystals, light-gray powder, or fused solid. Melting point 310 \u00b0C. Density 2.19 g / cm3. May spontaneously heat and ignite under exposure to moisture. Produces phosphorus pentaoxide and sulfur dioxide during combustion. Phosphorus pentaoxide reacts with water to form phosphoric acid, a corrosive material. Phosphorus heptasulfide reacts with water to form phosphoric acid and hydrogen sulfide, a toxic flammable gas with a rotten-egg smell. Continued exposure to hydrogen sulfide disables the sense of smell."}]