| Label | Id | |
|---|---|---|
| (2S)-2-amino-3-oxobutanoate | http://purl.obolibrary.org/obo/CHEBI_78948 | |
| (2S)-2-ammonio-3-oxobutanoate | http://purl.obolibrary.org/obo/CHEBI_78948 | |
| (2S)-2-azaniumyl-3-oxobutanoate | http://purl.obolibrary.org/obo/CHEBI_78948 | |
| L-2-amino-3-oxobutanoic acid zwitterion | http://purl.obolibrary.org/obo/CHEBI_78948 |
