[{"from": "human", "value": "Describe this molecule. [C][C][=Branch1][C][=N][C][=Branch1][C][=O][O]"}, {"from": "gpt", "value": "The molecule is a zwitterion resulting from the transfer of a proton from the carboxy group to the nitrogen of 2-iminopropionic acid. It is a conjugate acid of a 2-iminopropanoate. It is a tautomer of a 2-aminoacrylic acid, a 2-ammonioprop-2-enoate and a 2-iminopropionic acid."}]