[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a thiosulfate(1-). It has a role as a human metabolite. It is a conjugate base of a sulfurothioic S-acid. It is a tautomer of a trioxidosulfanidosulfate(1-)."}, {"from": "gpt", "value": "[O][S][=Branch1][C][=O][=Branch1][C][=S][O-1]"}]