Einecs 246-537-6

1-Amino-9,10-dihydro-4-hydroxy-9,10-dioxo-2-anthracenesulfonic acid

1-Amino-4-hydroxy-9,10-dihydro-9,10-dioxoanthracene-2-sulfonic acid

1-amino-9,10-dihydro-4-hydroxy-9,10-dioxoanthracene-2-sulphonic acid