[{"from": "human", "value": "What can you tell me about 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][C][=Branch1][C][=O][N][C@@H1][Branch2][Ring1][Branch1][C][N][C@H1][C][C@@H1][Branch1][=N][C@H1][Branch1][=Branch2][C@@H1][Branch1][Branch1][C@H1][Ring1][=Branch1][O][O][O][O][C@@H1][Branch2][Ring1][Ring1][C@@H1][Branch1][#C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][O][O]"}, {"from": "gpt", "value": "The molecule is an N-acyl-1-deoxy-4-hydroxysphinganine in which the acyl group on nitrogen is hexacosanoyl and in which C-1 is substituted by a cyclitolic [(1S,2S,3R,4R,5S)-2,3,4,5-tetrahydroxycyclohexyl] amino group. It is a synthetic analogue of the CD1d-presented agonist alpha-galactosylceramide. It has a role as an epitope. It is an amino cyclitol and a N-acyl-1-deoxy-4-hydroxysphinganine."}]