[{"from": "human", "value": "Describe this molecule. [C][C][C][C][C][C][C][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][Ring2][#C][C][O][C@H1][C@@H1][Branch2][Ring2][#Branch1][C@H1][Branch2][Ring2][C][C@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][O][C@@H1][C@@H1][Branch1][P][C@H1][Branch1][=N][C@H1][Branch1][=Branch2][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][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 digalactosylceramide consisting of an alpha-D-galactosyl-(1->4)-beta-D-galactosyl moiety attached at position 1 of N-(pentacosanoyl)sphingosine via a glycosidic linkage. It has a role as a mouse metabolite and a rat metabolite. It is a digalactosylceramide and an alpha-D-galactosyl-(1->4)-beta-D-galactosyl-(1<->1')-ceramide(d18:1(4E)). It is functionally related to a pentacosanoic acid and an alpha-D-Galp-(1->4)-beta-D-Galp."}]