| Label | Id | |
|---|---|---|
| ICRF-193 | http://purl.obolibrary.org/obo/CHEBI_93771 | |
| meso-2,3-bis(2,6-dioxopiperazin-4-yl)butane | http://purl.obolibrary.org/obo/CHEBI_93771 | |
| meso-4,4'-(1,2-dimethylethylene)di-2,6-piperazinedione | http://purl.obolibrary.org/obo/CHEBI_93771 | |
| meso-4,4'-(3,2-butanediyl)-bis(2,6-piperazinedione) | http://purl.obolibrary.org/obo/CHEBI_93771 | |
| 4,4'-(2R,3S)-butane-2,3-diyldipiperazine-2,6-dione | http://purl.obolibrary.org/obo/CHEBI_93771 | |
| ICRF 193 | http://purl.obolibrary.org/obo/CHEBI_93771 |