[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an organic cation obtained by protonation of the secondary amino group of acarbose; major species at pH 7.3. It is an ammonium ion derivative and an organic cation. It is a conjugate acid of an acarbose."}, {"from": "gpt", "value": "[C][C@@H1][C@H1][Branch2][Branch1][=Branch2][C@@H1][Branch2][Branch1][Ring2][C@H1][Branch2][Ring2][#C][C@H1][Branch1][Ring2][O][Ring1][=Branch1][O][C@@H1][C@H1][Branch2][Ring1][P][O][C@@H1][Branch1][=Branch2][C@@H1][Branch1][Branch1][C@H1][Ring1][=Branch1][O][O][O][C@@H1][C@H1][Branch1][=C][O][C][Branch1][=Branch2][C@@H1][Branch1][Branch1][C@H1][Ring1][=Branch1][O][O][O][C][O][C][O][O][O][NH2+1][C@H1][C][=C][Branch1][=N][C@H1][Branch1][=Branch2][C@@H1][Branch1][Branch1][C@H1][Ring1][=Branch1][O][O][O][C][O]"}]