[{"from": "human", "value": "Provide a description of this molecule. [C][C][=Branch1][C][=O][N][C@@H1][C@H1][Branch2][=Branch1][Ring1][C@@H1][Branch2][Branch1][=C][C@H1][Branch2][Branch1][Branch2][O][C@@H1][Ring1][=Branch1][O][C@@H1][C@H1][Branch2][Ring2][Branch2][C@H1][Branch2][Ring1][=Branch2][O][C@@H1][Branch1][Branch1][C@H1][Ring1][=Branch1][O][C][O][P][=Branch1][C][=O][Branch1][C][O][O][C][C][C][C][C][N][O][C@H1][Branch1][Ring1][C][O][C][=Branch1][C][=O][O][N][C][=Branch1][C][=O][C][C][O][O][O]"}, {"from": "gpt", "value": "The molecule is a synthetic disaccharide phosphate consisting of an alpha-D-GlcNAc-(1->3)-alpha-D-GlcNAc disaccharide linked glycosidically to O-2 of D-glyceric acid and connected to a 5-aminopentyl linker via a phospho group at O-6 of the reducing-end residue. Synthesized for immobilization on microarray surfaces and conjugation to carrier proteins as a potential vaccine candidate to protect from Clostridium difficile infections. It is functionally related to a D-glyceric acid."}]