[{"from": "human", "value": "Could you give me a brief overview of this molecule? [C][Branch1][Ring1][C][N][C][O][C@@H1][C@H1][Branch2][Ring1][Branch1][C@H1][Branch1][P][C@@H1][Branch1][=N][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C@@H1][Branch1][Ring1][C][O][O][O][O][O][C@@H1][C@H1][Branch2][Ring1][Branch1][C@H1][Branch1][P][C@@H1][Branch1][=N][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C@@H1][Branch1][Ring1][C][O][O][O][O][O][C@@H1][C@H1][Branch2][Ring2][P][C@H1][Branch2][Ring2][N][C@@H1][Branch2][Ring2][#Branch1][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C@@H1][Branch1][Ring1][C][O][O][C@@H1][C@H1][Branch2][Ring1][Branch1][C@H1][Branch1][P][C@@H1][Branch1][=N][C@H1][Branch1][Ring2][O][Ring1][=Branch1][C@@H1][Branch1][Ring1][C][O][O][O][O][O][O][O][O]"}, {"from": "gpt", "value": "The molecule is a linear synthetic tetrasaccharide derivative consisting of four D-glycero-alpha-D-manno-heptopyranose residue linked in sequence (1->6),(1->2), (1->2), (1->2). An aminopropyl linker at the reducing end enables printing onto microscope slides. One of a series of substructures of the Helicobacter pylori O6 O-antigen tridecasaccharide O-antigen used for its immunological evaluation. It is a tetrasaccharide derivative, a glycoside and an alpha-L-Fuc-(1->2)-beta-D-Gal-(1->4)-[alpha-L-Fuc-(1->3)]-beta-D-GlcNAc-(1->3)-beta-D-Gal-(1->3)-alpha-DD-Hep-(1->3)-alpha-DD-Hep-(1->3)-alpha-DD-Hep-(1->3)-alpha-DD-Hep-(1->3)-alpha-DD-Hep-(1->6)-alpha-DD-Hep-(1->2)-alpha-DD-Hep-(1->2)-alpha-DD-Hep-O[CH2]3NH2."}]