is tautomer of alanine amino acid zwitterion alanine zwitterion 0 2-ammoniopropanoate 2-azaniumylpropanoate 89.048 89.09320 An amino acid zwitterion arising from transfer of a proton from the carboxy to the amino group of alanine; major species at pH 7.3. C3H7NO2 CC([NH3+])C([O-])=O CHEBI:66916 InChI=1S/C3H7NO2/c1-2(4)3(5)6/h2H,4H2,1H3,(H,5,6) QNAYBMKLOCPYGJ-UHFFFAOYSA-N chebi_ontology