[{"from": "human", "value": "Provide a description of this molecule. [C][C][C][C][C][C][C][C][C][C][C][C][C][/C][=C][/C@H1][Branch2][Branch1][=C][C@H1][Branch2][Ring2][#Branch2][C][O][C@@H1][C@@H1][Branch2][Ring2][C][C@H1][Branch2][Ring1][Branch1][C@H1][Branch1][P][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C][O][S][=Branch1][C][=O][=Branch1][C][=O][O][O][O][S][=Branch1][C][=O][=Branch1][C][=O][O][O][N][C][=Branch1][C][=O][C][C][C][C][C][C][C][C][C][C][C][O]"}, {"from": "gpt", "value": "The molecule is a D-galactosyl-N-acylsphingosine having sulfo groups at the 3- and 6-positions on the galactose ring and lauroyl (dodecanoyl) as the N-acyl group. It has a role as an epitope. It is a N-acyl-beta-D-galactosylsphingosine and a galactosylceramide sulfate."}]