| Label | Id | |
|---|---|---|
| ((13)C)methanedione | http://purl.obolibrary.org/obo/CHEBI_139538 | |
| (13)CO2 | http://purl.obolibrary.org/obo/CHEBI_139538 | |
| ((13)C)carbon dioxide | http://purl.obolibrary.org/obo/CHEBI_139538 | |
| carbon dioxide((13)C) | http://purl.obolibrary.org/obo/CHEBI_139538 | |
| carbon-(13)C dioxide | http://purl.obolibrary.org/obo/CHEBI_139538 |
