[{"from": "human", "value": "Describe this molecule. [C][C][C][C][C][=N][C][=Branch2][Ring2][Ring2][=C][Branch2][Ring1][=C][N][Ring1][Branch1][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=N][N][=N][N-1][Ring1][Branch1][C][O][Cl]"}, {"from": "gpt", "value": "The molecule is an organic anion that is the conjugate base of losartan, obtained from the deprotonation of the tetrazole NH group. Major species at pH 7.3. It is a conjugate base of a losartan."}]