[{"from": "human", "value": "Describe this molecule. [N+1][=Branch1][C][=O][Branch1][C][O-1][O][Cl]"}, {"from": "gpt", "value": "The molecule is a nitrate of chlorine. It is an important atmospheric gas present in the stratosphere. Nitrite is a toxic compound known to cause methemoglobinemia. (L1137,  L1623)"}]