| Label | Id | |
|---|---|---|
| L-alpha-aspartyl | http://purl.obolibrary.org/obo/CHEBI_32462 | |
| L-arcanose | http://purl.obolibrary.org/obo/CHEBI_32575 | |
| L-argininate | http://purl.obolibrary.org/obo/CHEBI_32681 | |
| L-arginine | http://purl.obolibrary.org/obo/CHEBI_32682 | |
| L-argininediium | http://purl.obolibrary.org/obo/CHEBI_32683 | |
| L-argininium | http://purl.obolibrary.org/obo/CHEBI_32682 | |
| L-argininium(1+) | http://purl.obolibrary.org/obo/CHEBI_32682 | |
| L-argininium(2+) | http://purl.obolibrary.org/obo/CHEBI_32683 | |
| L-arginyl | http://purl.obolibrary.org/obo/CHEBI_32684 | |
| L-asparaginate | http://purl.obolibrary.org/obo/CHEBI_32650 | |
| L-asparaginium | http://purl.obolibrary.org/obo/CHEBI_32651 | |
| L-aspart-1-yl | http://purl.obolibrary.org/obo/CHEBI_32462 | |
| L-asparto | http://purl.obolibrary.org/obo/CHEBI_32465 | |
| L-aspartoyl | http://purl.obolibrary.org/obo/CHEBI_32464 | |
| L-cystein-S-yl | http://purl.obolibrary.org/obo/CHEBI_32793 |