| Label | Id | |
|---|---|---|
| acid red 1 (free acid form) | http://purl.obolibrary.org/obo/CHEBI_87465 | |
| acid red 1 free acid | http://purl.obolibrary.org/obo/CHEBI_87465 | |
| 5-(Acetylamino)-4-hydroxy-3-(phenylazo)naphthalene-2,7-disulphonic acid | http://purl.obolibrary.org/obo/CHEBI_87465 | |
| 5-acetamido-4-hydroxy-3-(phenyldiazenyl)naphthalene-2,7-disulfonic acid | http://purl.obolibrary.org/obo/CHEBI_87465 | |
| azophloxine free acid | http://purl.obolibrary.org/obo/CHEBI_87465 |