[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][O][C][=Branch1][C][=O][C@H1][Branch1][Branch1][C][C][S][C][N][C][=Branch1][C][=O][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][N][Branch1][Ring2][C][C][Cl][C][C][Cl]"}, {"from": "gpt", "value": "The molecule is a nitrogen mustard compound that cross-links with DNA, causing inhibition of DNA synthesis. (NCI)"}]