[{"from": "human", "value": "Could you provide a description of this molecule? [C][S][=Branch1][C][=O][=Branch1][C][=O][O][C][C][C][C][O][S][=Branch1][C][=O][=Branch1][C][=O][C]"}, {"from": "gpt", "value": "The molecule is an orally administered anticancer alkylating agent used in the treatment of chronic myelogenous leukemia, as well as a parenterally administered myeloablative agent used in preparation of hematopoietic cell transplantation (HCT). Busulfan has been linked to transient serum enzyme elevations during therapy, to rare cases of cholestatic hepatitis, instances of nodular regenerative hyperplasia and, when given in high doses, to sinusoidal obstruction syndrome which can be severe and fatal."}]