[{"from": "human", "value": "Describe this molecule. [C][Branch1][Branch2][C][C][NH2+1][C][C][C][=O][C][NH3+1]"}, {"from": "gpt", "value": "The molecule is major microspecies at pH 7.3 It is a conjugate base of a 3-[(4-aminobutyl)amino]propanal."}]