Term Name:	6-aminopenicillanic acid zwitterion
Synonyms:	(2S,5R,6R)-6-azaniumyl-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate, 6-aminopenicillanate, 6-azaniumyl-2,2-dimethylpenam-3alpha-carboxylate
Definition:	Zwitterionic form of 6-aminopenicillanic acid arising from migration of a proton from the carboxy group to the 6-amino group; major species at pH 7.3.
Ontology:	ChEBI [CHEBI:57869]  ( EBI )