[{"from": "human", "value": "Describe this molecule. [C][=N][C][=Branch1][=C][=C][Branch1][Branch2][C][=Branch1][Ring2][=N][Ring1][=Branch1][N][N][C][=O][N]"}, {"from": "gpt", "value": "The molecule is a member of the class of aminopyrimidines that is 4,6-diaminopyrimidine bearing an additional formamido substituent at position 5. A DNA lesion formed when DNA exposed to ionising radiation. It is an aminopyrimidine and a formamidopyrimidine."}]