[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is conjugate base of 2,2'-iminodipropanoic acid having both carboxy groups in anionic form and the nitrogen protonated. It is a conjugate base of a 2,2'-iminodipropanoic acid."}, {"from": "gpt", "value": "[C][C][Branch1][=Branch1][C][=Branch1][C][=O][O-1][NH2+1][C][Branch1][C][C][C][=Branch1][C][=O][O-1]"}]