[{"from": "human", "value": "Describe this molecule. [C][Branch1][Ring2][C][C][N][C][N]"}, {"from": "gpt", "value": "The molecule is a toxic diamine formed by putrefaction from the decarboxylation of arginine and ornithine. Putrescine is a solid. This compound belongs to the polyamines. These are compounds containing more than one amine group. Known drug targets of putrescine include putrescine-binding periplasmic protein, ornithine decarboxylase, and S-adenosylmethionine decarboxylase proenzyme."}]