The molecule is an amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of 1-aminocyclopropanecarboxylic acid; major species at pH 7.3. It has a role as a plant metabolite. It is a conjugate acid of a 1-aminocyclopropanecarboxylate. It is a tautomer of a 1-aminocyclopropanecarboxylic acid.
1-azaniumylcyclopropane-1-carboxylate