[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a cationic sphingoid obtained by protonation of the amino group of 1-deoxysphinganine; major species at pH 7.3. It is a cationic sphingoid and a Deoxysphingoid base. It is a conjugate acid of a 1-deoxysphinganine."}, {"from": "gpt", "value": "[C][C][C][C][C][C][C][C][C][C][C][C][C][C][C][C@H1][Branch1][=Branch1][C@H1][Branch1][C][C][NH3+1][O]"}]