[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][=Branch1][C][=O][N][C@@H1][Branch2][#Branch1][=Branch2][C][O][C@H1][C@@H1][Branch2][=Branch1][P][C@H1][Branch2][=Branch1][N][C@@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][O][C@H1][C@@H1][Branch2][Branch1][#Branch2][C@H1][Branch1][=N][C@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][O][O][C@@][Branch2][Ring1][P][C][C@@H1][Branch2][Ring1][O][C@H1][Branch1][P][C@@H1][Branch1][Ring2][O][Ring1][=Branch1][C@@H1][Branch1][#Branch1][C@@H1][Branch1][Ring1][C][O][O][O][N][C][=Branch1][C][=O][C][O][O][C][=Branch1][C][=O][O][O][O][O][C@@H1][Branch1][S][/C][=C][/C][C][C][C][C][C][C][C][C][C][C][C][C][O]"}, {"from": "gpt", "value": "The molecule is a sialotriaosylceramide in which the triaosyl group is 3,5-dideoxy-5-(2-hydroxyacetamido)-D-glycero-alpha-D-galacto-non-2-ulopyranonosyl-(2->3)-beta-D-galactopyranosyl-(1->4)-beta-D-glucopyranosyl attached to the primary hydroxy function of ceramide. A tumour antigen found in solid tumors such as breast carcinoma, nonsmall cell lung cancer, and melanoma, but not usually detected in normal human cells. It has a role as a tumour antigen."}]