| Label | Id | |
|---|---|---|
| ((-)O)2P(O)- | http://purl.obolibrary.org/obo/CHEBI_30931 | |
| phosphonato | http://purl.obolibrary.org/obo/CHEBI_30931 | |
| phosphonato group | http://purl.obolibrary.org/obo/CHEBI_30931 | |
| dioxidooxo-lambda(5)-phosphanyl | http://purl.obolibrary.org/obo/CHEBI_30931 | |
| -P(O)(O(-))2 | http://purl.obolibrary.org/obo/CHEBI_30931 | |
| -PO3(2-) | http://purl.obolibrary.org/obo/CHEBI_30931 |