| Label | Id | |
|---|---|---|
| L-histidinediium | http://purl.obolibrary.org/obo/CHEBI_32512 | |
| L-histidinium(2+) | http://purl.obolibrary.org/obo/CHEBI_32512 | |
| 4-[(2S)-2-ammonio-2-carboxyethyl]-1H-imidazol-3-ium | http://purl.obolibrary.org/obo/CHEBI_32512 | |
| L-histidine dication | http://purl.obolibrary.org/obo/CHEBI_32512 |