[{"from": "human", "value": "Describe this molecule. [C][NH1+1][Branch1][C][C][C@H1][C@@H1][C][C@@H1][C][C][=C][Branch2][Ring2][#C][C][=C][C][=Branch2][Ring2][Branch2][=C][Ring1][=Branch1][C][=Branch2][Ring1][S][=C][Ring1][#Branch2][C][=Branch1][C][=O][C@@][Ring1][#C][Branch2][Ring1][C][C][=Branch1][=C][=C][Branch1][=Branch1][C][Ring2][Ring1][Ring1][=O][C][=Branch1][C][=O][N][O-1][O][O][O][N][Branch1][C][C][C]"}, {"from": "gpt", "value": "The molecule is a zwitterion obtained by transfer of a proton from the 2-hydroxy group to the 1-amino group of minocycline. It is the major microspecies at pH 7.3 (according to Marvin v 6.2.0.). It is a zwitterion and an a tetracycline zwitterion. It is a conjugate acid of a minocycline(1-). It is a tautomer of a minocycline."}]