| Label | Id | |
|---|---|---|
| (1)H(.) | http://purl.obolibrary.org/obo/CHEBI_29305 | |
| monoprotium | http://purl.obolibrary.org/obo/CHEBI_29305 | |
| hydrogen atom | http://purl.obolibrary.org/obo/CHEBI_29305 | |
| hydrogen radical | http://purl.obolibrary.org/obo/CHEBI_29305 | |
| p(+)e(-) | http://purl.obolibrary.org/obo/CHEBI_29305 | |
| protium(.) | http://purl.obolibrary.org/obo/CHEBI_29305 |