[{"from": "human", "value": "Describe this molecule. [O][P][=Branch1][C][=O][Branch1][C][O][O][P][=Branch1][C][=O][Branch1][C][O][O]"}, {"from": "gpt", "value": "The molecule is an acyclic phosphorus acid anhydride obtained by condensation of two molecules of phosphoric acid. It has a role as an Escherichia coli metabolite. It is a phosphorus oxoacid and an acyclic phosphorus acid anhydride. It is a conjugate acid of a diphosphate(1-)."}]